Formation (American football)
Encyclopedia
A formation in American football
American football
American football is a sport played between two teams of eleven with the objective of scoring points by advancing the ball into the opposing team's end zone. Known in the United States simply as football, it may also be referred to informally as gridiron football. The ball can be advanced by...

 refers to the position players line up in before the start of a down. There are both offensive and defensive formations and there are many formations in both categories.

Offense

At the highest level of play in the NFL
National Football League
The National Football League is the highest level of professional American football in the United States, and is considered the top professional American football league in the world. It was formed by eleven teams in 1920 as the American Professional Football Association, with the league changing...

 and NCAA
National Collegiate Athletic Association
The National Collegiate Athletic Association is a semi-voluntary association of 1,281 institutions, conferences, organizations and individuals that organizes the athletic programs of many colleges and universities in the United States...

, the one constant in all formations is the offensive line, consisting of the left and right tackle, left and right guard, and a center. These five positions are often referred to collectively as the "line", and have the primary role of blocking. By rule there must be two additional players on the line of scrimmage called Ends. These players are eligible receivers and may play near the linemen (tight ends) or farther away (split end or wide receiver). Most teams play additional players near (but still off) the line of scrimmage to act as extra pass receivers.

Offensive positions

Up to four players can be behind the line of scrimmage, but one is always designated the quarterback (defined as the player who receives the ball from the center). The quarterback has five options once he receives the ball:
  • He may keep the ball and run with it
  • He may hand or pitch the ball laterally or backwards to another player, who may then run or throw a forward pass
  • He may throw a forward pass to an eligible receiver
  • He may hold the ball for a place-kicker who attempts a field goal
  • He may kick the ball himself, either by punting the ball to the other team, or by attempting a drop-kicked field goal (which is rare)


The three other backs can be halfbacks
Running back
A running back is a gridiron football position, who is typically lined up in the offensive backfield. The primary roles of a running back are to receive handoffs from the quarterback for a rushing play, to catch passes from out of the backfield, and to block.There are usually one or two running...

, (who primarily carry the ball), fullbacks
Fullback (American football)
A fullback is a position in the offensive backfield in American and Canadian football, and is one of the two running back positions along with the halfback...

, (who primarily block), or they can play near (but not on) the line of scrimmage to act as extra tight end
Tight end
The tight end is a position in American football on the offense. The tight end is often seen as a hybrid position with the characteristics and roles of both an offensive lineman and a wide receiver. Like offensive linemen, they are usually lined up on the offensive line and are large enough to be...

s or wide receivers. A tight end that fills the role as the 4th back is often called an "H-Back
H-back
An H-Back is an offensive position in American football, and is also known as power back. The position is a hybrid of a fullback and a tight end. The position was made notable in the NFL by the Washington Redskins under head coach Joe Gibbs who ran a two tight end system...

" and a wide receiver that fills that role is sometimes known as a "flanker" or a "slot" receiver (depending on where he lines up). Most formations have a "strong" side (the side with the tight end, or the side with more players) and a "weak side" (the side opposite the tight end, or the side with fewer players).

The ends, which may be either wide receiver
Wide receiver
A wide receiver is an offensive position in American and Canadian football, and is the key player in most of the passing plays. Only players in the backfield or the ends on the line are eligible to catch a forward pass. The two players who begin play at the ends of the offensive line are eligible...

s, or tight end
Tight end
The tight end is a position in American football on the offense. The tight end is often seen as a hybrid position with the characteristics and roles of both an offensive lineman and a wide receiver. Like offensive linemen, they are usually lined up on the offensive line and are large enough to be...

s, may catch a passed ball or receive a handoff.

Below are the most common and historically significant offensive formations, along with descriptions and diagrams to display each. In each case, the diagrams will use the following symbols:
  • QB = quarterback (the player who leads and informs the offense the plays)
  • C = center (the player who begins the play with a snap on the line and blocks afterwards)
  • G = guard (the player who blocks on line beside the center)
  • T = tackle (the player who blocks on the line beside the guard)
  • TE = tight end (the player who often goes out for passes and often blocks on the line)
  • WR = wide receiver (the player who gets assigned a route and has to catch the ball when passed to)
  • HB = halfback (the primary ball carrier)
  • FB = fullback (the secondary ball carrier also used for blocking)


This list is not exhaustive; there are hundreds of different ways to organize a team's players while still remaining within the "7 on the line 4 in the backfield convention". Still, this list of formations covers enough of the basics that almost every formation can be considered a variant of the ones listed below.

Rules

The offense is required to set up a formation before a play, subject to several rules:
  • The formation must have at least 7 players on the line of scrimmage
    Line of scrimmage
    In American and Canadian football a line of scrimmage is an imaginary transverse line beyond which a team cannot cross until the next play has begun...

    . The 7 players are not required to be next to each other, so they may spread out across the width of the field, but this is rare; most offenses place at least 5 players together in a continuous line. Although it is rare (because it reduces the number of eligible receivers), teams may place more than 7 players on the line
  • The other players not on the line (usually 4 in number) may be positioned anywhere, but all must be at least 1 yard behind the 7 or more players on the line of scrimmage. The traditional saying is "7 on the line, 4 in the backfield" but this is something of a misnomer, as "backfield" usually refers to the area directly behind the offensive line. 3 of the 4 "backfield" players (i.e., the 3 not receiving the snap from center) may line up as wide receivers as long as they are behind the line of scrimmage; these are known as slot receivers if between the ends, and flankers if outside the ends.
  • Of the 7 (or more) players on the line of scrimmage, all except those at either end of the line are ineligible receivers: these players may not touch or catch a forward pass (unless it is first touched by an eligible receiver, including a deflection by a defensive player), and on a forward pass play, they may not advance downfield (i.e., across the neutral zone
    Neutral zone (American football)
    In American football, the neutral zone can be described as the length of the football from one tip to the other when it is spotted on the field prior to the snap of the ball during a scrimmage down...

    ) before the pass crosses the neutral zone. Ineligible receivers may advance freely on a running play or after a pass is thrown. These players typically have uniform numbers in the range 50-79 to indicate they are ineligible.
  • In the NFL, players with numbers (50-79) indicating ineligibility who are not among the ineligible receivers must report to the referee as eligible; failure to do so will result in a penalty to the offense. The referee will relay that information to the defensive captain, and he will generally announce it to spectators as well. After reporting as eligible, those players may line up at any legal position just as if they were normally eligible receivers. Offenses sometimes use this tactic in a short yardage situation to provide extra blocking, and some plays are even designed for a designated player to receive a pass.
  • In high school
    High school football
    High school football, in North America, refers to the game of football as it is played in the United States and Canada. It ranks among the most popular interscholastic sports in both of these nations....

     (NFHS) numbers 50-79 are always ineligibile, and may not receive. In fact if one of these players touch a forward pass before it is touched by a defensive player, it is a penalty for offensive pass interference (15 yards plus loss of down). The numbers can only be eligible during a scrimmage kick (punt or field goal).
  • The offense must set before the play: all players must take their positions and remain motionless for at least 1 second before the ball is snapped. Typically, after the offense breaks the huddle and walks to the line, the quarterback will call "set" and then begin his regular snap count. The offense is allowed to shift in certain situations and reorganize, but they must again set once they assume new positions. Once set, offensive players may not move until the snap and may not flinch to simulate a snap (with the exception of the man in motion, described below). A violation is a false start penalty.
  • The offense may put one of the 4 backfield players in motion
    Motion (football)
    In gridiron football, motion refers to the movement of an offensive player at or prior to the snap.- Motion and shift :There is a distinction drawn between a shift and motion in football. A shift occurs when one or more players changes their position on the offensive side of the ball before the...

    after the set but before the snap. The motion must be either parallel to or (if in the backfield) away from the line of scrimmage at the snap
    Snap (football)
    A snap starts each American football and Canadian football play from scrimmage.-Action:...

    ; certain types of football such as arena football
    Arena football
    Arena football is a variety of gridiron football played by the Arena Football League . It is a proprietary game, the rights to which are owned by Gridiron Enterprises, and is played indoors on a smaller field than American or Canadian outdoor football, resulting in a faster and higher-scoring game....

     allow forward motion at the snap. In Canadian football
    Canadian football
    Canadian football is a form of gridiron football played exclusively in Canada in which two teams of 12 players each compete for territorial control of a field of play long and wide attempting to advance a pointed prolate spheroid ball into the opposing team's scoring area...

    , all of the players in the backfield can be in motion, in any direction, at the time of the snap, as long as they have not crossed the line of scrimmage before the snap.

T formation

The T formation is the precursor to most modern formations, in that it places the quarterback directly under center (in contrast to its main competitor of its day, the single wing, which had the quarterback receiving the ball on the fly).

It consists of three running backs lined up in a row about five yards behind the quarterback, forming the shape of a T. It may feature two tight ends (known as the Power T) or one tight end and a wide receiver (in this case known as a split end). The latter variation is known as the Split T, created in 1941 by University of Missouri
Missouri Tigers football
The Missouri Tigers football team represents the University of Missouri in NCAA Division I FBS college football. The team has competed in the North Division of the Big 12 Conference since the conference's inception in 1996...

 head coach Don Faurot. This is a running formation in which the option
Option offense
The option offense is a generic term that is used to describe a wide variety of offensive systems in American football. Option offenses are characterized as such due to the predominance of option running plays employed in these schemes. Option offenses have traditionally relied heavily upon running...

 is effective. The T formation was made famous by the University of Minnesota
Minnesota Golden Gophers football
The University of Minnesota Golden Gophers are one of the oldest programs in college football history. They compete in the NCAA Division I Football Bowl Subdivision and the Big Ten Conference. The Golden Gophers have claimed six national championships and have an all time record of 646–481–44 as...

 in the 1930s and 1940s (winning five national titles). When legendary coach George Halas' Chicago Bears
Chicago Bears
The Chicago Bears are a professional American football team based in Chicago, Illinois. They are members of the North Division of the National Football Conference in the National Football League...

 used the T-formation to defeat the Washington Redskins
Washington Redskins
The Washington Redskins are a professional American football team and members of the East Division of the National Football Conference in the National Football League . The team plays at FedExField in Landover, Maryland, while its headquarters and training facility are at Redskin Park in Ashburn,...

 by a score of 73–0 in the 1940 NFL championship game, it marked the end of the Single Wing at nearly all levels of play, as teams, almost overnight, moved to formations with the quarterback "under center" like the T. George Halas is credited with perfecting the T formation.

One variation of the T-Formation would be where all the runningbacks would be closer than usual, being at fullback depth rather than halfback depth. Another variation of the "balanced T" formation is the so-called "unbalanced T" formation. In this configuration the line of scrimmage has an end and tackle left of center, while to the right of the center are two guards a tackle and an end. This creates a line that is weighted toward the right of the center. With the backfield lining up in the conventional "T" formation behind the center (quarterback, two halfbacks and fullback), the resulting configuration is "unbalanced" due the asymmetry of the placement of the linemen.

I formation

This is one of the most common formations used at all levels of football. It consists of two backs lined up behind the quarterback, with the back closest to the quarterback being called the fullback and the back behind the fullback called the running back
Running back
A running back is a gridiron football position, who is typically lined up in the offensive backfield. The primary roles of a running back are to receive handoffs from the quarterback for a rushing play, to catch passes from out of the backfield, and to block.There are usually one or two running...

, tailback
Tailback
Tailback can mean:* Halfback * A line of motor vehicles caught up in traffic congestion; a traffic jam...

, or I-back. The two backs line up either in a line (hence the name of the formation since it looks like a letter I) or with the fullback "offset" to either side. The fourth back is most commonly employed as an extra wide receiver. Here are three diagrams of I-Formation, strong side right (that is, with the tight end
Tight end
The tight end is a position in American football on the offense. The tight end is often seen as a hybrid position with the characteristics and roles of both an offensive lineman and a wide receiver. Like offensive linemen, they are usually lined up on the offensive line and are large enough to be...

 lining up to the right, typical for a right-handed quarterback). Notice that the 4th back required by the rules is the set-back wide receiver at the right (called the flanker).
Two other I formation variations include the Maryland I and the Power I. These formations lack a flanker, and use the maximum 3 running backs rather than the standard 2. They are used primarily as running formations. These may employ either tight ends or split ends (wide receivers) or one of each. The Maryland I was developed by Maryland
Maryland Terrapins football
The Maryland Terrapins football team represents the University of Maryland in National Collegiate Athletic Association Division I Football Bowl Subdivision competition. The Terrapins compete within the Atlantic Division of the Atlantic Coast Conference...

 head coach Tom Nugent
Tom Nugent
Thomas N. "Tom" Nugent was an American college football coach and innovator, sportscaster, public relations man. He served as the head football coach at the Virginia Military Institute, Florida State University, and the University of Maryland. His career record was 89–80–3...

. More recently, Utah
Utah Utes football
The Utah Utes football program is a college football team that currently competes in the Pacific-12 Conference of the Football Bowl Subdivision of NCAA Division I and represents the University of Utah. The Utah college football program began in 1892 and has played home games at Rice–Eccles...

 has utilized this formation with quarterback Brian Johnson
Brian Johnson (quarterback)
Brian Delance Johnson is an American football quarterbacks coach for the University of Utah. He played college football at Utah and was drafted by the New York Sentinels in the UFL Premiere Season Draft in 2009....

.

Single set back

Also known as the "ace" formation, the single set back formation consists of one running back lined up about five yards behind the quarterback. The other 2 backs can either act as extra tight ends or wide receivers. This formation is normally used for a pass play, but can also be good for running, as defenders must move at least one player out of the middle of the field (the "box", between the tackles on the offensive line) to cover the additional wide receiver. In passing situations, this formation (and similar variations) is known as max protect as it requires the running back and two tight ends to stay in the vicinity to block an oncoming pass rush and leaves only two wide receivers to catch a pass downfield.

The basic single-back set does not employ a fullback and the addition of the extra flanker. Since he is lined up in the space between the tackle and the split end, he is called the "slot" receiver. This formation may be referred to as "single back, slot left".

A variation of the ace is known as the spread formation. It utilizes 4 wide receivers and no tight ends. In the NFL, this formation was the basis of the Run & Shoot offense that was popular in the 1980s with teams such as the Detroit Lions
Detroit Lions
The Detroit Lions are a professional American football team based in Detroit, Michigan. They are members of the North Division of the National Football Conference in the National Football League , and play their home games at Ford Field in Downtown Detroit.Originally based in Portsmouth, Ohio and...

 and the Houston Oilers but has since fallen out of favor as a primary offensive formation.

It is often used as a pass formation, because of the extra wide receivers. It also makes an effective run formation, because it "spreads the field" and forces the defense to respect the pass, thus taking players out of the box. Certain college programs, such as the University of Hawaii
Hawaii Warriors football
The Hawaii Warriors football team represents the University of Hawaii at Mānoa in NCAA Division I FBS college football. The team, which is currently coached by Greg McMackin, is part of the Western Athletic Conference until 2012, when the team joins the Mountain West Conference.The Hawaii Warriors...

 and Texas Tech
Texas Tech Red Raiders football
Texas Tech Red Raiders football program is a college football team that represents Texas Tech University . The team competes, as a member of the Big 12 Conference, which is a Division I Bowl Subdivision of the National Collegiate Athletic Association...

 still use it as their primary formation. Brigham Young University also uses the spread offense, although they tend to employ their tight ends more frequently than Hawaii and Texas Tech. Minnesota and TCU are also starting to employ the spread offense.

Joe Gibbs
Joe Gibbs
Joe Jackson Gibbs is a former American football coach, NASCAR Championship team owner, and two time NHRA Pro Stock team owner. He was the 20th and 26th head coach in the history of the Washington Redskins...

, twice head coach of the Washington Redskins
Washington Redskins
The Washington Redskins are a professional American football team and members of the East Division of the National Football Conference in the National Football League . The team plays at FedExField in Landover, Maryland, while its headquarters and training facility are at Redskin Park in Ashburn,...

, devised an ace variation that used a setback, or "flexed" tight end known as an H-back
H-back
An H-Back is an offensive position in American football, and is also known as power back. The position is a hybrid of a fullback and a tight end. The position was made notable in the NFL by the Washington Redskins under head coach Joe Gibbs who ran a two tight end system...

. In this formation, the normal tight-end is almost exclusively a blocker, while the H-back is primarily a pass receiver. This formation is often referred to as a "Two Tight End" set. Some teams (like the Indianapolis Colts
Indianapolis Colts
The Indianapolis Colts are a professional American football team based in Indianapolis. They are currently members of the South Division of the American Football Conference in the National Football League ....

 under Tony Dungy
Tony Dungy
Anthony Kevin "Tony" Dungy [DUN-jee] is a former professional American football player and coach in the National Football League. Dungy was head coach of the Tampa Bay Buccaneers from 1996 to 2001, and head coach of the Indianapolis Colts from 2002 to 2008...

) use this formation with both tight ends on the line and use two flankers. Many other teams in the NFL, even those that don't use this as a primary formation, still run some plays using a variant of this formation.

Pro set

Also called the "split backs" or "three-end formation", this is similar to the I-formation and has the same variations. The difference is that the two backs are split behind the quarterback instead of being lined up behind him.

Clark Shaughnessy
Clark Shaughnessy
Clark Daniel Shaughnessy was an American football coach and innovator. He is sometimes called the "father of the T formation", although that system had previously been used as early as the 1880s. Shaughnessy did, however, modernize the obsolescent T formation to make it once again relevant in the...

 designed the formation from the T Formation in 1949 after acquiring halfback Elroy "Crazy Legs" Hirsch
Elroy Hirsch
Elroy "Crazylegs" Hirsch was an American football running back and receiver for the Los Angeles Rams and Chicago Rockets, nicknamed for his unusual running style.-Early life:...

. Shaughnessy thought he would make a great receiver but already had two great receivers in Tom Fears
Tom Fears
Thomas Jesse Fears was a Mexican-American football wide receiver for the Los Angeles Rams in the National Football League, playing nine seasons from 1948 to 1956.-Early life:...

 and Bob Shaw
Bob Shaw (football player)
Robert Shaw was an American football tight end in the National Football League.His parents were the late Fred and Lucy Shaw. Mr. Shaw's athletic skill was evident as early as high school, when he lettered three times each in football, basketball and track at Fremont Ross High School...

. Schaughnessy moved Hirsch to the flanker position behind the right end. Thus started what was known as the three-end formation.

This formation is most often associated with Bill Walsh
Bill Walsh (football coach)
William Ernest "Bill" Walsh was a head coach for the San Francisco 49ers and Stanford Cardinal football team, during which time he popularized the West Coast offense....

's San Francisco 49ers
San Francisco 49ers
The San Francisco 49ers are a professional American football team based in San Francisco, California, playing in the West Division of the National Football Conference in the National Football League . The team was founded in 1946 as a charter member of the All-America Football Conference and...

 teams of the 1980s and his West Coast Offense
West Coast offense
In American football, "West Coast Offense" refers to two similar but distinct offensive-strategic-systems of play: the "Air Coryell" system; or more commonly the pass play system popularized by Bill Walsh...

. It was also the favored formation of the pass-happy BYU Cougars under the tenure of legendary coach LaVell Edwards
LaVell Edwards
R. LaVell Edwards is a former American football coach of Brigham Young University . With 257 career victories, he ranks as one of the most successful college football coaches of all time...

. A modern example of the "pro-set" can be seen in the Florida State University
Florida State Seminoles football
The Florida State Seminoles football team represents Florida State University in college football. The Florida State Seminoles compete in NCAA Division I-FBS and are members of the Atlantic Division of the Atlantic Coast Conference...

 offense, which favors a Split Backs formation. The Seattle Seahawks
Seattle Seahawks
The Seattle Seahawks are a professional American football team based in Seattle, Washington. They are currently members of the Western Division of the National Football Conference in the National Football League . The team joined the NFL in 1976 as an expansion team...

 under Mike Holmgren
Mike Holmgren
Michael George Holmgren is a former professional football coach and current President of the Cleveland Browns. He served as the head coach of the Green Bay Packers from 1992 to 1998, and the Seattle Seahawks from 1999 to 2008...

 also favored this type of formation with the tight end usually being replaced with a third wide receiver.

Single wing

This archaic formation was popular for most of the first 50 years of modern American football, but it is rare today, except as a novelty. There are many variations of the single wing with really the only common thread being that, rather than lining up "under center", the quarterback is lined up a few yards behind with RBs on either side of him (similar to a modern shotgun formation
Shotgun formation
The shotgun formation is a formation used by the offensive team in American and Canadian football. This formation is used mainly for passing plays, although some teams use it as their base formation. In the shotgun, instead of the quarterback receiving the snap from center at the line of scrimmage,...

).

The most famous version of the Single Wing offense would be Knute Rockne
Knute Rockne
Knute Kenneth Rockne was an American football player and coach. He is regarded as one of the greatest coaches in college football history...

's "Notre Dame Box
Notre Dame Box
The Notre Dame Box was a variation of the single-wing formation used in American football, with great success by Notre Dame in college football and the Green Bay Packers of the 1920s and 1930s in the NFL...

" that he ran with the Four Horsemen
Four Horsemen (football)
The Four Horsemen of Notre Dame comprised a winning group of American football players at the University of Notre Dame under coach Knute Rockne. They were the backfield of Notre Dame's 1924 football team...

. It contained two tight ends, and 4 backs. The quarterback in this formation (called at the time a "single-wing tailback"), like today's shotgun QB, received the snap on the fly. The other 3 backs lined up on the same side of the QB in various arrangements. Also, the formation often featured an unbalanced line where the center (that is, the player who snapped the ball) was not strictly in the center of the line, but close to the weakside. The formation was originally designed as a brute-force running formation, since it had 7 players to one side of the center and only 2 on the other. Rockne's innovations with this formation involved using complicated backfield shifts and motion to confuse defenses, and adapting it as a passing formation. The single wing has recently had a renaissance of sorts with high schools; since it is so rare, its sheer novelty can make it successful.
Wildcat formation

Early in the 2008 season, the Miami Dolphins
Miami Dolphins
The Miami Dolphins are a Professional football team based in the Miami metropolitan area in Florida. The team is part of the Eastern Division of the American Football Conference in the National Football League...

 used a modern variant of the single wing formation known as the Wildcat formation. During the latter part of the 2008 season, and throughout the 2009 season, many different NFL teams instituted their own versions of the Wildcat. Some attribute the origins of the "Wildcat" to Bill Snyder’s Kansas State (whose sports teams are known as the "Wildcats") offense of the late ’90s and early 2000s, which featured a lot of zone read runs by the quarterback. Others attribute the origins to Hugh Wyatt, a Double Wing coach (See Double WIng discussion below). Both the Snyder and the Wyatt versions were different than the "Wildhog" version used by the University of Arkansas
Arkansas Razorbacks football
The Arkansas Razorbacks football program is a college football team that represents the University of Arkansas. The team is a member of the Southeastern Conference's Western Division, which is in Division I's Football Bowl Subdivision of the National Collegiate Athletic Association...

 for their versatile running back Darren McFadden
Darren McFadden
Darren McFadden is an American football running back who currently plays for the Oakland Raiders of the National Football League . He played college football for the University of Arkansas from 2005 to 2007...

. Notably, the Cleveland Browns have used this formation with Josh Cribbs. As of 2011, nearly every NFL team has their own variation of the Wildcat. Ohio State University has also used the wildcat with Ted Ginn Jr. and Daniel "Boom" Herron. Villanova University won the 2009
2009 NCAA Division I FCS football season
The 2009 NCAA Division I FCS football season, part of the college football season, began in August 2009 and concluded with the national championship game on December 18, 2009 in Chattanooga, Tennessee, won by Villanova 23–21 over Montana.-Rule changes for 2009:The NCAA football rules committee...

 Division I FCS championship using a multiple offense that incorporated the Wildcat. The University of Alabama
Alabama Crimson Tide football
|TeamName = Alabama football |Image = Alabama Crimson Tide Logo.svg |ImageSize = 110 |Helmet = Alabama Football.png |ImageSize2 = 150 |CurrentSeason = 2011 Alabama Crimson Tide football team...

 employed the wildcat as part of their 2009 BCS championship team's offensive package and continues to use it today with playmakers Mark Ingram, Trent Richardson
Trent Richardson
Trent Richardson is an American football running back. He is in his junior year at the University of Alabama. As a true freshman with the Alabama Crimson Tide in 2009 he helped lead the Tide to an undefeated 14-0 season including a victory in the 2010 BCS National Championship Game.-High school...

, and Marquis Maze
Marquis Maze
Tyran Marquis Maze is an American football wide receiver and return specialist currently playing for the Alabama Crimson Tide. He has played for the Crimson Tide from 2008 to 2011 and had over 1,000 receiving yards in the 2009 and 2010 seasons...

 (though with Maze it is nicknamed the "bobcat" due to his small stature).

Double Wing

The double wing, as a formation, is widely acknowledged to have been invented by Glenn "Pop" Warner in 1912. As an offensive system it widely regarded as the invention of Don Markham which revolved around the off-tackle power play, power sweep and trap. Markham ran very few plays, but blocked them according to defensive fronts and tendencies. A noticeable difference from the other teams lined up in the double-wing formation was the lack of line splits across the front. The Double Wing is combination of the I, which Markham initially ran the offense from in his earlier days, and the Wing-T 30 Series (Power Series). It is often referred to as the "bastard child of the I and the Wing-T". Breaking numerous state records everywhere Markham coached (and even setting the national high school scoring record) the "Markham Rule" was put into place to keep his team from winning by too many points. He is currently the Head Coach of Compton High School
Compton High School
Compton High School is a high school in Compton, California, part of the Compton Unified School District.-School history:The school first opened in 1896 as Compton Union High School and then later reestablished as Compton Senior High School in the 1950s after the new community college campus opened...

.



With Markham's success came many converts to his offense and many variations of the offense over the years. Perhaps the most well-known of Markham's converts is Hugh Wyatt
Hugh Wyatt
Hugh Rowland Wyatt, CVO was the Lord Lieutenant of West Sussex from 1999 to 2008. He succeeded the late Major General Sir Philip Ward....

, who brought more Wing-T to the offense and a greater ability to market the offense. In recent years the popularity of the offense has increased and brought some interesting variations and additions to the offense. Jack Gregory (American football coach)
Jack Gregory (American football coach)
-External links:...

 brought severe angle blocking into the mix which has become quite popular at the youth level. Similar to Wing-T 20 Series blocking it relies on track blocking as opposed to the "regular" double team scheme used by most Double Wing teams. Recently Gregory has changed the name of his severe angle blocking to TKO blocking (track and kick-out). Steve Calande has perhaps brought the best variation to Markham's Double Wing. Calande's GOD blocking (Gap-On-Down), although not groundbreaking at first glance, brings rule blocking in the offense to another level. The rules enable linemen to block any front and most importantly to do it with ease. For example, the man at the point of attack is the GOOD man (Gap-On-Over-Down) and has GOD (Gap-On-Down) inside of him (linemen to his inside). There are more to the rules than mentioned and his materials are available on his website.

The Double Wing is widely used at the youth level, becoming more popular at the high school level and has been used at the college level by none other than Don Markham at American Sports University
American Sports University
American Sports University is a private, non-profit sports business university in San Bernardino, California, currently seeking accreditation. It has been granted permanent approval to operate from the Bureau for Private Postsecondary and Vocational Education of the State of...

.

Shotgun

The modern descendant of the Single Wing. The quarterback lines up about five yards behind the center, in order to allow a better view of the defense and more time to get a pass off. The shotgun can distribute its 3 other backs and 2 ends any number of ways, but most commonly employs one running back
Running back
A running back is a gridiron football position, who is typically lined up in the offensive backfield. The primary roles of a running back are to receive handoffs from the quarterback for a rushing play, to catch passes from out of the backfield, and to block.There are usually one or two running...

, lined up next to the QB, one tight end and three wide receivers. This formation is most commonly used for passing but the quarterback can also hand it off to a running back or run himself. Some teams use this as their primary formation, such as the New England Patriots
New England Patriots
The New England Patriots, commonly called the "Pats", are a professional football team based in the Greater Boston area, playing their home games in the town of Foxborough, Massachusetts at Gillette Stadium. The team is part of the East Division of the American Football Conference in the National...

 and Indianapolis Colts
Indianapolis Colts
The Indianapolis Colts are a professional American football team based in Indianapolis. They are currently members of the South Division of the American Football Conference in the National Football League ....

. Most commonly, however, the Shotgun is used in long yardage situations, when the team is playing catch-up or in other obvious passing situations. Historically, the Shotgun was used to great success as a primary formation in the NFL by the Tom Landry
Tom Landry
Thomas Wade "Tom" Landry was an American football player and coach. He is ranked as one of the greatest and most innovative coaches in National Football League history, creating many new formations and methods...

-led Dallas Cowboys
Dallas Cowboys
The Dallas Cowboys are a professional American football franchise which plays in the Eastern Division of the National Football Conference of the National Football League . They are headquartered in Valley Ranch in Irving, Texas, a suburb of Dallas...

 teams of the 1970s and the 1990s Buffalo Bills
Buffalo Bills
The Buffalo Bills are a professional football team based in Buffalo, New York. They are currently members of the East Division of the American Football Conference in the National Football League...

 teams under Marv Levy
Marv Levy
Marvin Daniel Levy is a former American and Canadian football coach, front office executive and author.He is a former professional football coach, in the CFL as head coach of the Montreal Alouettes , and in the NFL as head coach of the Kansas City Chiefs and the Buffalo Bills , coaching the Bills...

, who used a variation known as the K-gun that relied on then-Bills quarterback Jim Kelly
Jim Kelly
James Edward Kelly is a former American football quarterback in the NFL for the Buffalo Bills and the USFL's Houston Gamblers....

. Today, the shotgun offense has become a staple of many college football teams. The success has altered the way college coaches recruit players.

Pistol

This offense was originated by Chris Ault
Chris Ault
Chris Ault is the current college football head coach of the University of Nevada Wolf Pack. Ault, along with John Gagliardi, is one of two active coaches who have been inducted into the College Football Hall of Fame....

 of the University of Nevada
Nevada Wolf Pack football
The Nevada Wolf Pack Football program represents the University of Nevada, Reno in college football. The Wolf Pack competes in the Western Athletic Conference at the Football Bowl Subdivision level of the NCAA...

. It is essentially a shotgun variation, with the quarterback
Quarterback
Quarterback is a position in American and Canadian football. Quarterbacks are members of the offensive team and line up directly behind the offensive line...

 lined up closer than in standard shotgun (normally 3 to 4 yards behind center), and a running back
Running back
A running back is a gridiron football position, who is typically lined up in the offensive backfield. The primary roles of a running back are to receive handoffs from the quarterback for a rushing play, to catch passes from out of the backfield, and to block.There are usually one or two running...

 lined up behind, rather than next to, the QB (normally at 3 to 4 yards behind quarterback).

The Pistol formation adds the dimension of a running game with the halfback being in a singleback position. This has disrupted the timing of some defenses with the way the quarterback hands the ball off to the halfback. This also allows the smaller halfbacks to hide behind the offensive line, causing opposing linebackers and pass-rushing defensive linemen to play more conservatively. The Pistol can also feature the option play. With this offense, the quarterback has the ability to get a better look past the offensive line and at the defense. Pistol formations have gained some popularity in NCAA football, and in fact, variants of this offense were used by the 2007 and 2009 BCS National Champions, LSU
2007 LSU Tigers football team
The 2007 LSU Tigers football team represented Louisiana State University during the college football season of 2007–2008, winning the Southeastern Conference championship and the national championship. The team's Head Coach was Les Miles who entered his third year at the helm of LSU Football...

 and Alabama
2009 Alabama Crimson Tide football team
The 2009 Alabama Crimson Tide football team represented the University of Alabama in the 2009 NCAA Division I FBS football season. It was the Crimson Tide's 77th season as a member of the Southeastern Conference and its 18th within the SEC Western Division...

, respectively.

In 2008, the Kansas City Chiefs
Kansas City Chiefs
The Kansas City Chiefs are a professional American football team based in Kansas City, Missouri. They are a member of the Western Division of the American Football Conference in the National Football League . Originally named the Dallas Texans, the club was founded by Lamar Hunt in 1960 as a...

 began using the Pistol prominently in their offense, and are the first NFL team to do so.

Wishbone

A variation of the T-formation invented at the University of Texas at Austin
Texas Longhorns football
The Texas Longhorns football program is the intercollegiate football team representing The University of Texas at Austin, Austin, Texas. The team currently competes in the NCAA Football Bowl Subdivision as a member of the Big 12 Conference which is a Division I Bowl Subdivision of the National...

 by Emory Bellard
Emory Bellard
Emory Dilworth Bellard was a college football coach. He was head coach at Texas A&M University from 1972 to 1978 and at Mississippi State University from 1979 until 1985. Bellard died on February 10, 2011 after battling Lou Gehrig's disease since the fall of 2010.Bellard is a member of the Texas...

, then offensive coordinator
Offensive coordinator
An offensive coordinator is a member of the coaching staff of a gridiron football team who is in charge of the offense. Generally, along with his defensive counterpart, he represents the second level of command structure after the head coach...

 under Darrell Royal
Darrell Royal
Darrell K Royal is a former American football player and coach. He served as the head coach at Mississippi State University , the University of Washington , and the University of Texas at Austin , compiling a career college football record of 184–60–5...

. It consists of three running backs: a fullback lined up directly behind the quarterback, and the two halfbacks split behind the fullback. It can be run with two tight ends, one tight end and one wide receiver, or two wide receivers. It is used as a running formation for the most part. The option style of offense (where the Quarterback decides to run, handoff, or pitch the ball after the snap rather than before) is most closely associated with this formation. Notable college teams to run the Wishbone include Darrell Royal's Texas Longhorns of the late 1960s, Alabama
Alabama Crimson Tide football
|TeamName = Alabama football |Image = Alabama Crimson Tide Logo.svg |ImageSize = 110 |Helmet = Alabama Football.png |ImageSize2 = 150 |CurrentSeason = 2011 Alabama Crimson Tide football team...

 in the early 1970s, Oklahoma
Oklahoma Sooners football
The Oklahoma Sooners football program is a college football team that represents the University of Oklahoma . The team is currently a member of the Big 12 Conference, which is a Division I Bowl Subdivision of the National Collegiate Athletic Association...

 in the late 1970s and early 1980s. As with any hugely successful formation or philosophy, as teams learned how to defend against it, it became much less successful. By 1990, few major programs were using the wishbone.

Flexbone

A common formation found in colleges and high schools. In this formation, one back (the fullback) lines up behind the quarterback. Both ends are often split wide as wide receivers, though some variations include one or two tight ends. The two remaining backs, called wingbacks or slotbacks, line up behind the line of scrimmage just outside the tackles. This formation is primarily used to run the option
Option offense
The option offense is a generic term that is used to describe a wide variety of offensive systems in American football. Option offenses are characterized as such due to the predominance of option running plays employed in these schemes. Option offenses have traditionally relied heavily upon running...

, especially the triple option. Often, one of the wingbacks will go in motion in the direction the play is being run in. The United States Air Force Academy
Air Force Falcons football
The Air Force Falcons are a college football team from the United States Air Force Academy, located just outside of Colorado Springs, Colorado. The team competes in the Football Bowl Subdivision of the NCAA Division I and the Mountain West Conference.-Style:...

 (aka Air Force), the United States Naval Academy
Navy Midshipmen football
The Navy Midshipmen football team represents the United States Naval Academy in NCAA Division I-A college football. They are a Division I Football Bowl Subdivision independent school and coached by Ken Niumatalolo since December 2007...

 (Navy) and Georgia Tech
Georgia Tech Yellow Jackets football
The Georgia Tech Yellow Jackets football team represents the Georgia Institute of Technology in collegiate level football. While the team is officially designated as the Yellow Jackets, it is also referred to as the Ramblin' Wreck. The Yellow Jackets are a member of the Atlantic Coast Conference...

 are three college football
College football
College football refers to American football played by teams of student athletes fielded by American universities, colleges, and military academies, or Canadian football played by teams of student athletes fielded by Canadian universities...

 teams that use this formation. This formation was first used by University of Texas coach Darrel Royal in the '60s and '70s. A common result from this formation is a fake to the fullback and then an option to one of the running backs.

Wing T

A formation similar to the Flexbone, though much older, is known as the "Delaware Wing-T" was created by longtime University of Delaware coach and NCAA Rules Committee chairman David M. Nelson
David M. Nelson
David Moir Nelson was an American football player, coach, college athletics administrator, author, and authority on college football playing rules...

, and perfected by his successor Tubby Raymond. It has become a very popular offense with high schools and small colleges. It was designed at the time to be a mix between the single wing and T-formation. It took the motion and run-strength of the single wing, and the QB-under-center from the T. In this variation, there is only one wing back, with the other back lined up next to the fullback on the opposite side from the wing back. However, the Wing Back may also line up diagonally from the Tight End. He may be used as an extra blocker or a receiver. He may come in motion for running plays.

Empty backfield

Also known simply as "Five-wide", a reference to the five wide receivers. In the empty backfield formation, all of the backs play near the line of scrimmage to act as extra wide receivers or tight ends. This is almost exclusively a passing formation used to spread the field, often to open up short inside routes or screen routes. It can also be run with one or two wing backs like the flexbone formation allowing a running game and the ability to run the option. The quarterback can line up either under center or in the shotgun. This formation is becoming more popular in the NFL and college football, with recent successes at Texas Tech University
Texas Tech Red Raiders football
Texas Tech Red Raiders football program is a college football team that represents Texas Tech University . The team competes, as a member of the Big 12 Conference, which is a Division I Bowl Subdivision of the National Collegiate Athletic Association...

 and by the New England Patriots
New England Patriots
The New England Patriots, commonly called the "Pats", are a professional football team based in the Greater Boston area, playing their home games in the town of Foxborough, Massachusetts at Gillette Stadium. The team is part of the East Division of the American Football Conference in the National...

 in their record-setting 2007 season.

Goal line formation

Also called "jumbo", "heavy", "full house" or other similar names. As the name implies, this formation is used exclusively in short-yardage situations, and especially near the goal line. This formation typically has no wide receivers, and often employs 3 tight ends and 2 running backs, or alternately 2 tight ends and 3 running backs. Often, a tight end or full back position is occupied by a player who normally plays offensive line or defensive line positions to act as extra blockers. The Chicago Bears
Chicago Bears
The Chicago Bears are a professional American football team based in Chicago, Illinois. They are members of the North Division of the National Football Conference in the National Football League...

 of the mid-1980s famously used defensive tackle William "The Refrigerator" Perry
William Perry (American football)
William Perry is a former professional American football player. He is best known for his years as a defensive lineman for the Chicago Bears. In reference to his large size, he was popularly known as "The Refrigerator" or, abbreviated, "The Fridge".-Life and athletic career:Perry was born in...

 as a full back in this formation. In most cases, it is exclusively a running formation, designed to score by brute force. Some teams have successfully used this formation to pass out of, most famously the New England Patriots, who have used linebacker Mike Vrabel
Mike Vrabel
Michael George "Mike" Vrabel is an assistant coach at Ohio State. He is a retired American football linebacker in the National Football League. Vrabel spent 14 seasons in the NFL, having played for the Pittsburgh Steelers, New England Patriots and most recently, the Kansas City Chiefs...

 as a tight end to catch touchdown passes in both Super Bowl XXXVIII
Super Bowl XXXVIII
Super Bowl XXXVIII was an American football game played on February 1, 2004 at Reliant Stadium in Houston, Texas to decide the National Football League champion following the 2003 regular season....

 and Super Bowl XXXIX
Super Bowl XXXIX
Super Bowl XXXIX was an American football game played on February 6, 2005, at Alltel Stadium in Jacksonville, Florida, to decide the National Football League champion following the 2004 regular season...


Veer formation

The veer formation is a formation with two halfbacks lined up four and a half yards behind center on opposite sides of the quarterback who is under center. Two wide receivers are split out and a tight end is incorporated on one of the sides. The triple option
Triple Option
The triple option is an American football scheme used to offer multiple ways to progress the football forward in the field of play. The triple option is based on the option run, but uses three players who may run with the ball instead of the two that are used in the standard option run.The triple...

 is run most out of the veer.

Defense

Two terms often heard in referring to defensive formations are "the box" and "the secondary". The box is defined as an area on the defensive side of the ball, within 5 yards of the line of scrimmage
Line of scrimmage
In American and Canadian football a line of scrimmage is an imaginary transverse line beyond which a team cannot cross until the next play has begun...

 and framed by the offensive tackles. This area is most commonly occupied by defensive linemen and linebackers. The secondary can refer to the defensive backs as a group, or to the area behind the linebackers usually occupied by defensive backs. The two standard NFL defenses, the 4-3 and the 3-4, have 7 players in the box; sometimes the phrase "8 in the box" will be used to indicate that one of the safeties has moved into the box to defend against the run.

Defensive positions

The three basic defensive positions are:
  • Defensive lineman (DL): Linemen play at the line of scrimmage, directly across from the offensive line. They are categorized as defensive tackles (DT) or defensive ends (DE). The 4-3 defense has 2 tackles and 2 ends; the 3-4 defense has 2 ends and 1 tackle, who is sometimes called a nose tackle (NT) to indicate the 3-4. Tackles line up inside and rely on power to stop the run, while ends line up outside and are faster and more athletic to allow them to pursue the quarterback.

  • Linebacker
    Linebacker
    A linebacker is a position in American football that was invented by football coach Fielding H. Yost of the University of Michigan. Linebackers are members of the defensive team, and line up approximately three to five yards behind the line of scrimmage, behind the defensive linemen...

     (LB): Linebackers are positioned 2 to 4 yards behind the defensive line. The 4-3 defense has 3 linebackers, who are categorized as strong, middle and weak (SLB, MLB, WLB; also called Sam, Mike and Will). This is not an indication of strength; it instead refers to the positioning of the linebackers relative to the offense. Strong linebackers line up on the same side as the tight end, weakside away from the tight end. A 3-4 defense will use 4 linebackers, who are indicated by their side (right/left) and positioning (inside/outside).

  • Defensive back
    Defensive back
    In American football and Canadian football, defensive backs are the players on the defensive team who take positions somewhat back from the line of scrimmage; they are distinguished from the defensive line players and linebackers, who take positions directly behind or close to the line of...

     (DB): Defensive backs can include cornerbacks (CB), a strong safety (SS, lines up on same side as tight end) and a free safety (FS, so called because they are "free" to roam where needed). Cornerbacks are almost always responsible for defending receivers against the pass. Safeties often defend receivers as well, but they are usually positioned in the center of the field to be prepared to stop the run as well.

Rules

Rules regarding defensive formations are not as complex as their offensive counterparts. The defense may line up anywhere on its side of the neutral zone, and players are free to move at any time before the snap, but all defensive players must remain on their side of the neutral zone (defined as the width of the ball) before the snap. If they line up on the wrong side of the line, the offending player(s) are offsides.

These formations assume the offense is lined up strong side right (from the offenses point of view). These diagrams could be matched up to the diagrams above to make a complete 22 player football field.

4-3 defense

This base defense consists of four defensive linemen, three linebackers, and four defensive backs (two safeties, two corners). Against two-receiver offensive sets, this formation is effective against the run and the pass. In the 4-3, the linemen tend to line up in the gaps between the offensive line. On passing downs, the Mike (middle linebacker) is often responsible to cover any running backs, the Sam (strong-side linebacker) covers the Tight End, and the Will (weak-side linebacker) either covers a back or "blitzes" in an attempt to "sack" the quarterback. This formation was invented by former Detroit Lions
Detroit Lions
The Detroit Lions are a professional American football team based in Detroit, Michigan. They are members of the North Division of the National Football Conference in the National Football League , and play their home games at Ford Field in Downtown Detroit.Originally based in Portsmouth, Ohio and...

 Head Coach Buster Ramsey
Buster Ramsey
Garrard Sliger "Buster" Ramsey was an American football player who starred at William and Mary and was the first head coach of the American Football League's Buffalo Bills in 1960...

. There are several different variations of the 4-3 defense such as the 4-3 under defense, 4-3 over defense, 4-3 umbrella defense, 4-3 swim defense, and 4-3 slide defense.



6-1 defense

The 6-1 defense basically has the personnel of the 4-3 defense, but instead of the outside linebackers playing behind the defensive line, they line up alongside of the defensive line. The middle linebacker is the only one directly behind the line.

3-4 defense

This is the base defense of some teams. It consists of three defensive linemen, four linebackers, and four defensive backs (two safeties, two corners). The advantage is that while 4 players still usually rush the line, the quarterback can be less sure of which of the 4 linebackers will join the 3 linemen. This formation sacrifices some size (of linemen) for speed (of linebackers), but coaches choosing to utilize this formation as their base defense typically choose larger players in the front 7 to make up for the shortage of size. In this formation, the single tackle usually lines up directly over the "nose" of the ball, and is often called the "nose guard". In this formation, the linemen often line up directly in front of the offensive line, while the linebackers "shoot the gaps". There is also a variation of this defense called the 3-4 under defense. This defense is a one gap version of the 3-4 defense.

2-5 defense

In this variation of the 3-4, known also as the "3-4 eagle", the nose guard is removed from play and in his place is an extra linebacker, who lines up on the line where the nose guard would be, sometimes slightly behind where the nose guard would be. It allows defenses more flexibility in man to man coverages and zone blitzes. It was created by Los Angeles Rams defensive coordinator Fritz Shurmur, and evolved from Buddy Ryan
Buddy Ryan
James David "Buddy" Ryan is a former American NFL football coach.-Early years:Ryan was born and reared in a small, agricultural-based community "just outside of Frederick, Oklahoma." Ryan played college football for Oklahoma A&M University where he earned four letters as a guard between 1952 and...

's 46 defense. Shurmur created the defense in part to take advantage of the pass rush abilities of Kevin Greene
Kevin Greene
Kevin Darwin Greene is a former American football linebacker who played in the National Football League for 15 years and who retired after the 1999 NFL season...

, a defensive end sized linebacker. The "eagle" in the formation's name comes from the late 1940s-early 1950s Philadelphia Eagles
Philadelphia Eagles
The Philadelphia Eagles are a professional American football team based in Philadelphia, Pennsylvania. They are members of the East Division of the National Football Conference in the National Football League...

 coached by Greasy Neale.

The original Eagle defense was 5-2 arrangement, with five defensive linemen and two linebackers. In Neale's defense, as in Shurmur's variation, the nose tackle could also drop into pass coverage, thus Shurmur's use of the Eagle defense name.

4-4 defense

The 4-4 defense consists of four defensive linemen, four linebackers, and three defensive backs (one safety, two corners). Puts "eight men in the box" to stop the run, but it sacrifices deep coverage against the pass, especially if the opponent's receivers are better athletes than the cornerbacks. The formation is popular in high school football as well as smaller collegiate teams. If the opposite team is a good passing team, outside linebackers are usually called on to defend slotbacks.

38 defense (split middle)

38 refers to the positions of the defensive players on the line of scrimmage. Two "3" techniques (DT, lined up outside eye of guards) and two "8" techniques (DE, lined up outside of end man on line of scrimmage). The DT's are the only down lineman. Two standup players (Monster and Rover) are in "5" techniques. Two Linebackers are 3 yards off the ball behind DT's. A combination of the 4-4, 6-2, and the 46. Designed to stop the run and to confuse offenses. 3 players in secondary all covering deep thirds. The confusing element is either the "5" techniques or the "8" techniques can rush or drop into the flats. LB's have hook zones. Each player on the line has a Two Gap responsibility.

46 defense (forty-six)

This formation was invented by Buddy Ryan
Buddy Ryan
James David "Buddy" Ryan is a former American NFL football coach.-Early years:Ryan was born and reared in a small, agricultural-based community "just outside of Frederick, Oklahoma." Ryan played college football for Oklahoma A&M University where he earned four letters as a guard between 1952 and...

, defensive coordinator of the Chicago Bears
Chicago Bears
The Chicago Bears are a professional American football team based in Chicago, Illinois. They are members of the North Division of the National Football Conference in the National Football League...

 during the 1980s. Instead of having four linemen and six linebackers (as the name may suggest), it's actually a 4-4 set using 4-3 personnel. This was accomplished by moving a safety up into the "box" instead of a fourth linebacker. The '46' refers not to any lineman/linebacker orientation but was the jersey number of hard hitting strong safety Doug Plank
Doug Plank
Douglas Walter Plank is a former American-football safety and coach in the National Football League. Currently, he is the head coach of the Philadelphia Soul in the Arena Football League.- Early life :...

, the player Buddy Ryan
Buddy Ryan
James David "Buddy" Ryan is a former American NFL football coach.-Early years:Ryan was born and reared in a small, agricultural-based community "just outside of Frederick, Oklahoma." Ryan played college football for Oklahoma A&M University where he earned four letters as a guard between 1952 and...

 first used in this role at Chicago. The other feature of the 46 was the placement of both "outside" linebackers on the same side of the formation, with the defensive line shifted the opposite way with the weak defensive end about 1 to 2 yards outside the weak offensive tackle. This defense was the philosophical equivalent of the "Notre Dame Box" offense devised by Knute Rockne in the 1930s, in that it used an unbalanced field and complex pre-snap motion to confuse the opposing offense. Chicago rode this defense into a 15-1 season in 1985, culminating in a 46-10 win over New England
New England Patriots
The New England Patriots, commonly called the "Pats", are a professional football team based in the Greater Boston area, playing their home games in the town of Foxborough, Massachusetts at Gillette Stadium. The team is part of the East Division of the American Football Conference in the National...

 in Super Bowl XX
Super Bowl XX
Super Bowl XX was an American football championship game played on January 26, 1986 at the Louisiana Superdome in New Orleans, Louisiana to decide the National Football League champion following the 1985 regular season...

.

5-2 defense

The 5-2 defense consists of five defensive linemen, two linebackers, and four defensive backs (two corners, two safeties). Used to stop the run without sacrificing a safety. This formation is common in high schools..

Nickel formation

While the original Nickel defense utilized 5 defensive backs in conjunction with a 4 man rush, and but 2 linebackers, modern definition calls any formation that utilizes 5 defensive backs (from nickel = 5 cent piece) a Nickel defense. The Nickel defense originated as an innovation of Philadelphia Eagles defensive coach Jerry Williams in 1960 as a measure to defend star tight end Mike Ditka
Mike Ditka
Michael Keller Ditka, Jr. is a former American football NFL player, television commentator, and coach. Ditka coached the Chicago Bears for 11 years and New Orleans Saints for three years. Ditka and Tom Flores are the only two people to win Super Bowls as a player, an assistant coach, and a head...

 of the Chicago Bears. The Nickel coverage scheme is often used when the offense is using an additional wide receiver as it matches an extra cornerback against the extra receiver. The extra corner is often called a nickelback
Nickelback (position)
In American football, a nickelback is a cornerback who serves as the fifth defensive back on the defense. A base defense contains four defensive backs, consisting of two cornerbacks, and two safeties. Adding an extra back makes five, hence the term "nickel", which is the name for 5-cent coins in...

. Some variations use an extra strong safety instead of an extra cornerback. Strong safeties are often the more physical of the safeties, often resembling linebackers, so a Nickel with the extra safety can be more effective against the run than one wth an extra corner. The Nickel formation comes in several varieties:

4-2-5 nickel defense
The 4-2-5 removes a linebacker from the standard 4-3 to get the extra defensive back. A variation is the 2-4-5, which is primarily run by teams that run the 3-4 defense. They replace a defensive tackle with a corner.

3-3-5 nickel defense
The 3-3-5 removes a lineman to get the nickelback.
33 stack
The 33 stack uses an extra strong safety, and "stacks" linebackers and safeties directly behind the defensive linemen.
3-5-3
The 3-5-3 refers to a defense that has three down linemen (the "3" level), three linebackers and two corners (the "5" level), one free safety and 2 strong safeties (the "3" level). This is similar to a 33 stack, but with players more spread. Also called the "umbrella" defense or "3-deep". In this set, the third safety would be referred to as a "weak safety" (WS) and allows two position safeties at the mid-level with a third safety deep. It is because of this that the secondary safety in a football defense is called a free safety rather than a weak safety

Dime formation


Any defense consisting of six defensive backs. The sixth defensive back is known as the dimeback and this defense is also used in passing situations (particularly when the offense is using four wide receivers). As the extra defensive back in the nickel formation is called the nickel, two nickels gives you a dime, hence the name of the formation.

Quarter and half-dollar formations (prevent defense)

Any defense consisting of seven (quarter) or eight (half dollar) defensive backs. The seventh defensive back is often an extra safety, and this defense is used in extreme passing situations (such as to defend against a Hail Mary pass
Hail Mary pass
A Hail Mary pass or Hail Mary route in American football refers to any very long forward pass made in desperation with only a small chance of success, especially at or near the end of a half....

). It is occasionally referred to as the prevent defense because of its use in preventing desperation plays. The cornerbacks and safeties in a prevent defense usually make a point of defending the goal line at the expense of receivers in the middle of the field, thus making the formation susceptible to running plays and short passes.

The quarter formations are run from a 3-1-7 or a 4-0-7 in most instances; the New England Patriots
New England Patriots
The New England Patriots, commonly called the "Pats", are a professional football team based in the Greater Boston area, playing their home games in the town of Foxborough, Massachusetts at Gillette Stadium. The team is part of the East Division of the American Football Conference in the National...

 have used an 0-4-7 in some instances with no down linemen. Half dollar defenses are almost always run from a 3-0-8 formation. The eighth defensive back in this case is usually a wide receiver
Wide receiver
A wide receiver is an offensive position in American and Canadian football, and is the key player in most of the passing plays. Only players in the backfield or the ends on the line are eligible to catch a forward pass. The two players who begin play at the ends of the offensive line are eligible...

 from the offense; this is usually because the offensive players would be better than the defensive roster depth at that point, and the wide receiver's pass catching skills would come in handy in some situations.

Unlike other formations, the extra safety is not referred to as a quarterback or halfback (except in Canadian football
Halfback (Canadian football)
The halfback in Canadian football, and most commonly the Canadian Football League, refers to the defensive back rather than the running back, as in American football. The defensive halfback lines up inside covering the slotback. They are usually slightly larger than the cornerback to assist the...

), to avoid confusion with the offensive positions of the same names, but rather simply as a defensive back
Defensive back
In American football and Canadian football, defensive backs are the players on the defensive team who take positions somewhat back from the line of scrimmage; they are distinguished from the defensive line players and linebackers, who take positions directly behind or close to the line of...

 or a safety.

Goal line defense

Defense used on the goal line or in short yardage situations where the entire defense lines up close to the line of scrimmage in an attempt to stop an expected running play. It is usually used to counter a Goal Line offense. Since there is not more than 10-11 yards of field left, the safeties can be pulled for more linemen or linebackers.

However, depending upon the abilities of a particular receiving corps, some defenses may be forced to keep their defensive backs in goal-line situations, weakening their ability to stop the run.

Other variants

Clearly, the permutations are endless, bound only by the individual and collective abilities of a defensive unit. More extreme formations may be called for when a coach feels that his team is at a particular disadvantage due to personnel matchups. For example, Eric Mangini
Eric Mangini
Eric Mangini is the former head coach of the Cleveland Browns and New York Jets of the National Football League and current NFL analyst for ESPN.-College:...

, former coach of the Cleveland Browns
Cleveland Browns
The Cleveland Browns are a professional football team based in Cleveland, Ohio. They are currently members of the North Division of the American Football Conference in the National Football League...

 and the former coach of the New York Jets
New York Jets
The New York Jets are a professional football team headquartered in Florham Park, New Jersey, representing the New York metropolitan area. The team is a member of the Eastern Division of the American Football Conference in the National Football League...

, has employed a scheme that involves 1 defensive lineman and 6 linebackers. Prior to the snap, only the lineman assumes a three-point stance, ready to rush the passer. The 6 linebackers "rove" up and down the line of scrimmage, attempting to confuse the quarterback as to whether they will rush, drop into coverage, or blitz. This defense, combined with poor weather conditions, did serve to improve the Jets' pass rush against the New England Patriots
New England Patriots
The New England Patriots, commonly called the "Pats", are a professional football team based in the Greater Boston area, playing their home games in the town of Foxborough, Massachusetts at Gillette Stadium. The team is part of the East Division of the American Football Conference in the National...

 offensive line. Patriots' quarterback Tom Brady
Tom Brady
Thomas Edward Patrick "Tom" Brady, Jr. is an American football quarterback for the New England Patriots of the National Football League . After playing college football at Michigan, Brady was drafted by the Patriots in the sixth round of the 2000 NFL Draft.He has played in four Super Bowls,...

 was limited to just 14 completions out of 27 attempts, with no touchdowns and one interception during their December 16, 2007 game, but the defense proved ineffective in stopping the Patriots' running attack as the Patriots won.

Punting formation

Punting formations use a five-man offensive line, three "upbacks" (sometimes also referred to as "personal protectors") approximately 3 yards behind the line to act as an additional line of defense, two wide receivers known as "gunners
Gunner (American football)
In American football, a gunner, also known as a shooter or kamikaze, is a player on kickoffs and punts who specializes in running down the sideline very quickly in an attempt to tackle the kick returner or the punt returner...

" either to stop the punt returner or to down the ball and the punter, 15 yards behind the line of scrimmage to receive the long snap. The number of upbacks and gunners can vary, and either position can be replaced by a tight end in a "max protect" situation.

| |[][][][][] [][][][][]
| FS | PK
| LB LB LB |----------------------
|CB DEDTNTDTDE CB| [] [] [] [] []
|------------------| [] []
| TELTLGLSRGRTTE | [] []
| UB UB | KR KR
| PH |
| |
| PK |
Above: ASCII art
ASCII art
ASCII art is a graphic design technique that uses computers for presentation and consists of pictures pieced together from the 95 printable characters defined by the ASCII Standard from 1963 and ASCII compliant character sets with proprietary extended characters...

 representations of the offensive kick (bottom left) against a generic kick defense formation (top left) Note the extremely tight spacing of the linemen. Top right: Kickoff formation, bottom right: kick return formation.

Field goal formation

Most field goals feature nine offensive linemen (seven on the line, both ends in the tight end position, with two extra slightly off the line of scrimmage), a place holder who kneels 7 yards behind the line of scrimmage, and a kicker.

Kickoff formation

Kickoff formations are usually in a straight line, with ten players (nine if a placeholder is used on the kickoff) lined up across the field several yards behind the ball. Many leagues require that at least four players be on each side of the kicker at the time of a kick; prior to this, an onside kick
Onside kick
In American and Canadian football, an onside kick is a type of kick used at a kickoff or other free kick, or scrimmage kick or other kick during play, in which the ball is kicked favorably for the kicking team to avoid giving away the ball...

 formation often had all ten of the other players on one side of the kicker. In 2011
2011 NFL season
The 2011 NFL season, the 92nd regular season of the National Football League, began on Thursday, September 8, 2011 with the Super Bowl XLV champion Green Bay Packers defeating the New Orleans Saints 42–34 at Lambeau Field and will end with Super Bowl XLVI, the league's championship game, on...

, the NFL instituted a rule requiring players other than the kicker to line up no more than 5 yards from the ball before the kick. The latter rule was instituted to prevent players from generating the speed expected from a 15-yard runup before the kick, thus potentially reducing the speed and impact of collisions down the field.

Kick return formation

Kick return formations vary; in most situations, an association football-like formation is used, with eleven players staggered throughout the field including two (rarely, one) kick returners back to field deep kicks, two more twenty yards ahead of them to field squib kick
Squib kick
A squib kick is a term used in American football meaning a short, low, line drive kickoff that usually bounces around on the ground before it can be picked up by a member of the receiving team. The ball is kicked so short that it forces the receiving team's slower players to recover the ball first...

s, two more at about midfield mainly to assist in blocking, and five players located the minimum ten yards from the kicking line. In obvious onside kick formations, more players are moved to the front of the formation, usually top wide receivers and other players who are good at recovering and catching loose balls; this formation is known as the "hands team". A kick returner will usually remain back in the event of an unexpected deep kick in this situation.

To defend punts, the defensive line usually uses a man-on-man system with seven defensive linemen, two cornerbacks, a linebacker and a kick returner. They may choose to attempt to block the punt, or drop back to block the receiver.

Kneel

A special formation is used at the end of a game, when a team has a lead and simply needs to run out the clock to win the game. The "kneel
Quarterback kneel
In American football, a quarterback kneel, also called taking a knee, genuflect offense, or victory formation occurs when the quarterback immediately kneels to the ground after receiving the snap. It is primarily used to run the clock down, either at the end of the first half or the game itself, in...

" or "victory" formation was developed in the 1978 NFL season
1978 NFL season
The 1978 NFL season was the 59th regular season of the National Football League. The league expanded the regular season from a 14-game schedule to 16. Furthermore, the playoff format was expanded from 8 teams to 10 teams by adding another wild card from each conference...

 after The Miracle at the Meadowlands
The Miracle at the Meadowlands
The Miracle at the Meadowlands is the term used by sportscasters and Philadelphia Eagles fans for a fumble recovery by cornerback Herman Edwards that he returned for a touchdown at the end of a November 19, 1978 NFL game against the New York Giants in Giants Stadium...

, a botched final play in a game between the New York Giants
New York Giants
The New York Giants are a professional American football team based in East Rutherford, New Jersey, representing the New York City metropolitan area. The Giants are currently members of the Eastern Division of the National Football Conference in the National Football League...

 and the Philadelphia Eagles
Philadelphia Eagles
The Philadelphia Eagles are a professional American football team based in Philadelphia, Pennsylvania. They are members of the East Division of the National Football Conference in the National Football League...

 which resulted in a fumble and a pivotal last-second score. This formation is intended for one purpose: to allow the quarterback to safely down the ball without losing control, preventing the defense from recovering and advancing the ball to the end zone. The formation features several stop-gaps in the event the quarterback does lose the ball: a seven-man line, the quarterback, two upbacks (running backs) immediately behind him, one at each side in the event he fumbles, and a fast player (usually a wide receiver or cornerback) several yards back as a last resort in case the defense recovers and is able to advance the ball.

Both the Giants and Eagles developed similar formations of this design. The Eagles named their version the "Herman Edwards
Herman Edwards
Herman "Herm" Edwards, Jr. is an American football analyst who most recently coached in the National Football League for the Kansas City Chiefs. He was fired from this position on January 23, 2009. Since then, he has been hired as a football analyst for ESPN...

" play after their cornerback
Cornerback
A cornerback is a member of the defensive backfield or secondary in American and Canadian football. Cornerbacks cover receivers, to defend against pass offenses and make tackles. Other members of the defensive backfield include the safeties and occasionally linebackers. The cornerback position...

who scored the winning touchdown on the above fateful play.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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