Major League Baseball single-season home run record

The Major League Baseball record for the number of home runs has changed many times over the years.

Single-season records

Batter	Team	Age	Year	HR	Reign	Record Breaker
George Hall	Philadelphia Athletics Athletic of Philadelphia Athletic of Philadelphia was a prominent National Association, and later National League, professional baseball team that played in the second half of the 19th century.-Early History:...	27	1876 1876 in baseball After a tumultuous six-year existence, the National Association of Professional Base Ball Players , folded following the season. The National League of Professional Base Ball Clubs was formed in Chicago, Illinois by businessman, and owner of the Chicago White Stockings, William Hulbert, for the...	5	3 years	-
Charley Jones Charley Jones Charles Wesley Jones was an American left fielder in the National Association and Major League Baseball who hit 56 home runs and batted .298 during his twelve-year career...	Boston Red Caps Atlanta Braves The Atlanta Braves are a professional baseball club based in Atlanta, Georgia. The Braves are a member of the Eastern Division of Major League Baseball's National League. The Braves have played in Turner Field since 1997....	29	1879 1879 in baseball -Champions:*National League: Providence GraysNational Association: Albany Blue StockingsNorthwest League: Dubuque RabbitsInter-league playoff: Providence Grays def. Albany Blues , 2 games to 0.-National League final standings:-Statistical leaders:...	9	4 years	6th on July 31st off George Bradley George Bradley George Washington Bradley , nicknamed "Grin", was an American Major League Baseball player who was a pitcher and infielder. He was 5'10.5" and weighed 175 lbs. Bradley was born in Reading, Pennsylvania.-Baseball career:...
Harry Stovey Harry Stovey Harry Duffield Stovey, born Harry Duffield Stowe was a 19th century Major League Baseball player and the first player in major league history to hit 100 home runs...	Philadelphia Athletics Philadelphia Athletics (American Association) The Philadelphia Athletics were a professional baseball team, one of six charter members of the American Association, a 19th-century major league, which began play in 1882 as a rival to the National League. The other teams were the Baltimore Orioles, Cincinnati Red Stockings, Eclipse of...	27	1883 1883 in baseball -Champions:National League: Boston BeaneatersAmerican Association: Philadelphia AthleticsInter-State League: Brooklyn AtlanticsNorthwestern League: Toledo Blue StockingsInter-league playoff: Philadelphia declined to play Boston...	14	1 year	10th on August 1st off Jack Neagle Jack Neagle John Henry Neagle , was a professional baseball pitcher in the major leagues from -. He played for the Cincinnati Reds, Philadelphia Quakers, Baltimore Orioles, and Pittsburg Alleghenys.-External links:...
Ned Williamson Ned Williamson Edward Nagle "Ned" or "Ed" Williamson was an American Major League Baseball player for 13 seasons from 1878 until 1890...	Chicago White Stockings Chicago Cubs The Chicago Cubs are a professional baseball team located in Chicago, Illinois. They are members of the Central Division of Major League Baseball's National League. They are one of two Major League clubs based in Chicago . The Cubs are also one of the two remaining charter members of the National...	27	1884 1884 in baseball -Champions:First World's Championship Series: Providence Grays over New York Metropolitans National League: Providence GraysAmerican Association: New York MetropolitansUnion Association: St...	27	35 years	15th on July 9th off Ed Bagley Ed Bagley (baseball) Edward H. Bagley was an American Major League Baseball pitcher from 1884-1885.-External links:*...
Babe Ruth Babe Ruth George Herman Ruth, Jr. , best known as "Babe" Ruth and nicknamed "the Bambino" and "the Sultan of Swat", was an American Major League baseball player from 1914–1935...	Boston Red Sox Boston Red Sox The Boston Red Sox are a professional baseball team based in Boston, Massachusetts, and a member of Major League Baseball’s American League Eastern Division. Founded in as one of the American League's eight charter franchises, the Red Sox's home ballpark has been Fenway Park since . The "Red Sox"...	24	1919 1919 in baseball -Headline Event of the Year:Chicago White Sox players accused of throwing World Series, resulting in the Black Sox scandal.-Champions:*World Series: Cincinnati Reds over Chicago White Sox -MLB statistical leaders:-Headline Event of the Year:...	29	1 year	28th on September 24th off Bob Shawkey Bob Shawkey James Robert Shawkey was a right-handed Major League Baseball pitcher from to .-Biography:Shawkey born to John William Shawkey and Sarah Catherine Anthony, in Sigel, Pennsylvania...
Babe Ruth Babe Ruth George Herman Ruth, Jr. , best known as "Babe" Ruth and nicknamed "the Bambino" and "the Sultan of Swat", was an American Major League baseball player from 1914–1935...	New York Yankees New York Yankees The New York Yankees are a professional baseball team based in the The Bronx, New York. They compete in Major League Baseball in the American League's East Division...	25	1920 1920 in baseball -Champions:*World Series: Cleveland Indians over Brooklyn Robins -MLB statistical leaders:-American League final standings:-National League final standings:-Negro National League final standings:-East final standings:...	54	1 year	30th on July 19th off Dickie Kerr Dickie Kerr Richard Henry "Dickey" Kerr was a starting pitcher for the Chicago White Sox from -. As a rookie, he won 13 games and both his starts in the 1919 World Series, which would lead to the permanent suspensions of eight of his teammates in the Black Sox Scandal...
Babe Ruth Babe Ruth George Herman Ruth, Jr. , best known as "Babe" Ruth and nicknamed "the Bambino" and "the Sultan of Swat", was an American Major League baseball player from 1914–1935...	New York Yankees New York Yankees The New York Yankees are a professional baseball team based in the The Bronx, New York. They compete in Major League Baseball in the American League's East Division...	26	1921 1921 in baseball -Headline Events of the Year:First radio broadcast of the World Series.Babe Ruth breaks Roger Connor's All-Time Home Run record of 138.-Champions:*World Series: New York Giants over New York Yankees -MLB statistical leaders:...	59	6 years	55th on September 15th off Bill Bayne Bill Bayne William Lear Bayne was a pitcher in Major League Baseball who played for the St. Louis Browns , Cleveland Indians and Boston Red Sox . Bayne batted and threw left-handed...
Babe Ruth Babe Ruth George Herman Ruth, Jr. , best known as "Babe" Ruth and nicknamed "the Bambino" and "the Sultan of Swat", was an American Major League baseball player from 1914–1935...	New York Yankees New York Yankees The New York Yankees are a professional baseball team based in the The Bronx, New York. They compete in Major League Baseball in the American League's East Division...	32	1927 1927 in baseball -Headline Event of the Year:Murderers' Row lead New York Yankees to World Series victory.Babe Ruth hits 60 home runs.-Champions:* World Series: New York Yankees over Pittsburgh Pirates...	60	34 years	60th on September 30th off Tom Zachary Tom Zachary Jonathan Thompson Walton Zachary was a pitcher who had a 19-year career that lasted from 1918 to 1936. He played for the Philadelphia A's, Washington Senators, St...
Roger Maris Roger Maris Roger Eugene Maris was an American Major League Baseball right fielder. During the 1961 season, he hit a record 61 home runs for the New York Yankees, breaking Babe Ruth's single-season record of 60 home runs...	New York Yankees New York Yankees The New York Yankees are a professional baseball team based in the The Bronx, New York. They compete in Major League Baseball in the American League's East Division...	27	1961 1961 in baseball -Major League Baseball:World Series: New York Yankees over Cincinnati Reds ; Whitey Ford, MVPAll-Star Game , July 11 at Candlestick Park: National League, 5-4 *All-Star Game , July 31 at Fenway Park: 1–1 tie...	61	37 years	61st on October 1st off Tracy Stallard Tracy Stallard Evan Tracy Stallard is a retired American professional baseball player, a Major League Baseball pitcher from 1960 to 1966. He played with the Boston Red Sox, New York Mets and St...
Mark McGwire Mark McGwire Mark David McGwire , nicknamed "Big Mac", is an American former professional baseball player who played his major league career with the Oakland Athletics and the St. Louis Cardinals. He is currently the hitting coach for the St...	St. Louis Cardinals St. Louis Cardinals The St. Louis Cardinals are a professional baseball team based in St. Louis, Missouri. They are members of the Central Division in the National League of Major League Baseball. The Cardinals have won eleven World Series championships, the most of any National League team, and second overall only to...	35	1998 1998 in baseball -Headline events of the year:*Mark McGwire, Sammy Sosa, Ken Griffey, Jr., and Greg Vaughn all hit 30 home runs before the All-Star break and engage in a historic chase for Roger Maris's single-season record of 61 home runs...	70	3 years	62nd on September 8th off Steve Trachsel Steve Trachsel Stephen Christopher Trachsel , nicknamed "The Human Rain Delay", is a former Major League Baseball pitcher. He is known for the long amount of time he takes to deliver the ball to home plate in between pitches. Games in which he pitches are known to be considerably longer than most games, leading...
Barry Bonds Barry Bonds Barry Lamar Bonds is an American former Major League Baseball outfielder. Bonds played from 1986 to 2007, for the Pittsburgh Pirates and San Francisco Giants. He is the son of former major league All-Star Bobby Bonds...	San Francisco Giants San Francisco Giants The San Francisco Giants are a Major League Baseball team based in San Francisco, California, playing in the National League West Division....	37	2001 2001 in baseball -Major League Baseball:Regular Season ChampionsWorld Series Champion - Arizona Diamondbacks*Postseason - October 9 to November 4Click on any series score to link to that series' page....	73	current	71st on October 5th off Chan Ho Park

Progression

Summarized from The Baseball Encyclopedia for older information, and from various news stories for newer information:

5, by George Hall, Philadelphia Athletics

Athletic of Philadelphia

Athletic of Philadelphia was a prominent National Association, and later National League, professional baseball team that played in the second half of the 19th century.-Early History:...

(NL), 1876 (70 game schedule)

9, by Charley Jones

Charley Jones

Charles Wesley Jones was an American left fielder in the National Association and Major League Baseball who hit 56 home runs and batted .298 during his twelve-year career...

, Boston Red Stockings

Atlanta Braves

The Atlanta Braves are a professional baseball club based in Atlanta, Georgia. The Braves are a member of the Eastern Division of Major League Baseball's National League. The Braves have played in Turner Field since 1997....

(NL), 1879 (84 game schedule)

14, by Harry Stovey

Harry Stovey

Harry Duffield Stovey, born Harry Duffield Stowe was a 19th century Major League Baseball player and the first player in major league history to hit 100 home runs...

, Philadelphia Athletics

Athletic of Philadelphia

Athletic of Philadelphia was a prominent National Association, and later National League, professional baseball team that played in the second half of the 19th century.-Early History:...

(AA), 1883 (98 game schedule)

27, by Ned Williamson

Ned Williamson

Edward Nagle "Ned" or "Ed" Williamson was an American Major League Baseball player for 13 seasons from 1878 until 1890...

, Chicago White Stockings

Chicago Cubs

The Chicago Cubs are a professional baseball team located in Chicago, Illinois. They are members of the Central Division of Major League Baseball's National League. They are one of two Major League clubs based in Chicago . The Cubs are also one of the two remaining charter members of the National...

(NL), 1884 (112 game schedule)

Williamson benefited from a very short outfield fence in his home ballpark, Lakeshore Park

Union Base-Ball Grounds

Union Base-Ball Grounds was a baseball park located in Chicago, Illinois. It was also called White-Stocking Park, as it was the home field of the Chicago White Stockings of the National Association in 1871, after spending the 1870 season as an independent professional club playing home games...

. During the park's previous years, balls hit over the fence in that park were ground-rule doubles, but in 1884 (its final year) they were credited as home runs. Williamson led the pace, but several of his Chicago teammates also topped the 20 HR mark that season. Of Williamson's total, 25 were hit at home, and only 2 on the road. Noticing the fluke involved, fans of the early 20th century were more impressed with Buck Freeman

Buck Freeman

John Frank "Buck" Freeman was an American right fielder in Major League Baseball at the turn of the 20th century. Freeman was one of the top sluggers of his era, his most famous feat being the 25 home runs he hit during the 1899 season.A native of Catasauqua, Pennsylvania, Freeman showed talent as...

's total of 25 home runs in 1899 or Gavvy Cravath

Gavvy Cravath

Clifford Carlton "Gavvy" Cravath , also nicknamed "Cactus", was an American right fielder and right-handed batter in Major League Baseball who played primarily for the Philadelphia Phillies...

's 1915 total of 24.

29, by Babe Ruth

Babe Ruth

George Herman Ruth, Jr. , best known as "Babe" Ruth and nicknamed "the Bambino" and "the Sultan of Swat", was an American Major League baseball player from 1914–1935...

, Boston Red Sox

Boston Red Sox

The Boston Red Sox are a professional baseball team based in Boston, Massachusetts, and a member of Major League Baseball’s American League Eastern Division. Founded in as one of the American League's eight charter franchises, the Red Sox's home ballpark has been Fenway Park since . The "Red Sox"...

(AL), 1919 (140 game schedule)

Even with that relatively small quantity, and still pitching part-time, Ruth alone hit more home runs than did 10 of the 15 other major league clubs. The second-highest individual total was 12, by Gavvy Cravath of the Philadelphia Phillies

Philadelphia Phillies

The Philadelphia Phillies are a Major League Baseball team. They are the oldest continuous, one-name, one-city franchise in all of professional American sports, dating to 1883. The Phillies are a member of the Eastern Division of Major League Baseball's National League...

. Ruth homered in every park in the league, the first time anyone had achieved that distinction. Ruth was a pitcher

Pitcher

In baseball, the pitcher is the player who throwsthe baseball from the pitcher's mound toward the catcher to begin each play, with the goal of retiring a batter, who attempts to either make contact with the pitched ball or draw a walk. In the numbering system used to record defensive plays, the...

by trade, and the ultimate exception to the axiom that pitchers can't hit. Ruth had led the league with 11 in 1918, despite playing only 95 games, and still in the "dead-ball" era. By 1919, after the War, the materials for baseballs began to improve and became naturally "livelier".

54, Babe Ruth

Babe Ruth

George Herman Ruth, Jr. , best known as "Babe" Ruth and nicknamed "the Bambino" and "the Sultan of Swat", was an American Major League baseball player from 1914–1935...

, New York Yankees

New York Yankees

The New York Yankees are a professional baseball team based in the The Bronx, New York. They compete in Major League Baseball in the American League's East Division...

(AL), 1920 (154 game schedule)

Ruth hit just a few more home runs on the road (26) than he had the previous year (20), but he hit far more (29) in the Polo Grounds in New York (where the Yankees played at the time) than he had in Fenway Park

Fenway Park

Fenway Park is a baseball park near Kenmore Square in Boston, Massachusetts. Located at 4 Yawkey Way, it has served as the home ballpark of the Boston Red Sox baseball club since it opened in 1912, and is the oldest Major League Baseball stadium currently in use. It is one of two "classic"...

(9) in Boston the year before, as he took full advantage of the nearby right field wall, although he also hit many long drives at the Polo Grounds. Of the other 15 major league clubs, only the Philadelphia Phillies exceeded Ruth's single-handed total, hitting 64 in their bandbox ballpark Baker Bowl

Baker Bowl

Baker Bowl is the best-known popular name of a baseball park that formerly stood in Philadelphia, Pennsylvania, United States. Its formal name, painted on its outer wall, was National League Park. It was also initially known as Philadelphia Park or Philadelphia Base Ball Grounds.It was on a small...

. The second-highest individual total was the St. Louis Browns

Baltimore Orioles

The Baltimore Orioles are a professional baseball team based in Baltimore, Maryland in the United States. They are a member of the Eastern Division of Major League Baseball's American League. One of the American League's eight charter franchises in 1901, it spent its first year as a major league...

' George Sisler

George Sisler

George Harold Sisler , nicknamed "Gentleman George" and "Gorgeous George," was an American professional baseball player for 15 seasons, primarily as first baseman with the St. Louis Browns...

's 19. Ruth's major-league record slugging percentage (total bases / at bats) of .847 stood for the next 80 years.

59, by Ruth, New York (AL), 1921 (154 game schedule)

Ruth's slugging percentage was just .001 less than his record-setting average the previous year.

60, by Ruth, New York (AL), 1927 (154 game schedule)

Ruth hit more home runs in 1927 than any of the other seven American League teams. His closest rival was his teammate Lou Gehrig

Lou Gehrig

Henry Louis "Lou" Gehrig , nicknamed "The Iron Horse" for his durability, was an American Major League Baseball first baseman. He played his entire 17-year baseball career for the New York Yankees . Gehrig set several major league records. He holds the record for most career grand slams...

, who hit 47 homers that year.

61, by Roger Maris

Roger Maris

Roger Eugene Maris was an American Major League Baseball right fielder. During the 1961 season, he hit a record 61 home runs for the New York Yankees, breaking Babe Ruth's single-season record of 60 home runs...

, New York (AL), 1961 (162 game schedule)

Pushing Maris that year was teammate Mickey Mantle

Mickey Mantle

Mickey Charles Mantle was an American professional baseball player. Mantle is regarded by many to be the greatest switch hitter of all time, and one of the greatest players in baseball history. Mantle was inducted into the National Baseball Hall of Fame in 1974.Mantle was noted for his hitting...

; slowed by an injury late in the season, Mantle finished with 54. With the season being 8 games longer than in previous years – leading to the suggestion that official record keepers place an "asterisk

Asterisk

An asterisk is a typographical symbol or glyph. It is so called because it resembles a conventional image of a star. Computer scientists and mathematicians often pronounce it as star...

" next to the record, many observers derided this situation as a major public relations gaffe by major league baseball.

70, by Mark McGwire

Mark McGwire

Mark David McGwire , nicknamed "Big Mac", is an American former professional baseball player who played his major league career with the Oakland Athletics and the St. Louis Cardinals. He is currently the hitting coach for the St...

, St. Louis Cardinals

St. Louis Cardinals

The St. Louis Cardinals are a professional baseball team based in St. Louis, Missouri. They are members of the Central Division in the National League of Major League Baseball. The Cardinals have won eleven World Series championships, the most of any National League team, and second overall only to...

(NL), 1998 (162 game schedule)

After an epic battle between McGwire and Ken Griffey, Jr.

Ken Griffey, Jr.

George Kenneth "Ken" Griffey, Jr. , nicknamed "Junior" and "The Kid", is a former Major League Baseball outfielder and during his final years, designated hitter...

, who both got into the 50s in 1997, many expected the two to take on Maris in 1998. However, the player that competed for the record with McGwire in 1998 was Sammy Sosa

Sammy Sosa

Samuel Peralta "Sammy" Sosa is a Dominican former professional baseball right fielder. Sosa played with four Major League Baseball teams over his career which spanned from 1989-2007....

of the Chicago Cubs

Chicago Cubs

, who propelled himself into the race with a record-setting 20 home runs that June. He would finish with 66 that season and actually led McGwire for approximately 45 minutes after hitting his 66th, until McGwire hit his own 66th, and four more in his final three games of the season. McGwire broke the old records in 144 games - fewer than even the old 154 game season. That removed season-length as a source of "asterisk

Asterisk

An asterisk is a typographical symbol or glyph. It is so called because it resembles a conventional image of a star. Computer scientists and mathematicians often pronounce it as star...

" controversy, but McGwire's connection to the steroid scandal introduced a new call for asterisks on this and other records set in this era. On January 11th, 2010 McGwire admitted using steroids during the 1998 season. McGwire claimed to use steroids to help heal an ailing body and denied they helped him to hit a baseball.

73, by Barry Bonds

Barry Bonds

Barry Lamar Bonds is an American former Major League Baseball outfielder. Bonds played from 1986 to 2007, for the Pittsburgh Pirates and San Francisco Giants. He is the son of former major league All-Star Bobby Bonds...

, San Francisco Giants

San Francisco Giants

The San Francisco Giants are a Major League Baseball team based in San Francisco, California, playing in the National League West Division....

(NL), 2001 (162 game schedule)

In part due to 9/11 terrorist attacks

September 11, 2001 attacks

The September 11 attacks The September 11 attacks The September 11 attacks (also referred to as September 11, September 11th or 9/119/11 is pronounced "nine eleven". The slash is not part of the pronunciation...

, the then-recently set record of only three years by McGwire, and Bonds' poor relationship with the media and some fans, Bonds' record setting was not as publicized as the previous chases. Bonds was initially chased closely by Sammy Sosa

Sammy Sosa

Samuel Peralta "Sammy" Sosa is a Dominican former professional baseball right fielder. Sosa played with four Major League Baseball teams over his career which spanned from 1989-2007....

of the Chicago Cubs

Chicago Cubs

and Luis Gonzalez of the Arizona Diamondbacks

Arizona Diamondbacks

The Arizona Diamondbacks are a professional baseball team based in Phoenix. They play in the West Division of Major League Baseball's National League. From 1998 to the present, they have played in Chase Field...

, but Gonzalez faded late and finished with 57, while Sosa finished closer with 64 to become the first player to exceed 60 home runs in three separate seasons. McGwire was not a factor, in his final major season, with the injuries that had plagued him for much of his career finally taking their toll, although he still hit at a pace that would have put him near 50 if he had played a full season. Bonds' slugging percentage of .863 broke the major league record set by Ruth in 1920. As happened with McGwire's record, Bonds' connection to the steroid scandal resulted in further calls for asterisk

Asterisk

An asterisk is a typographical symbol or glyph. It is so called because it resembles a conventional image of a star. Computer scientists and mathematicians often pronounce it as star...

s on this and other records set in this era.

Former record holders

Number of home runs in the season divided by number of games in schedule (not games played)

Average	\| Name
0.450	Barry Bonds Barry Bonds Barry Lamar Bonds is an American former Major League Baseball outfielder. Bonds played from 1986 to 2007, for the Pittsburgh Pirates and San Francisco Giants. He is the son of former major league All-Star Bobby Bonds...
0.430	Mark McGwire Mark McGwire Mark David McGwire , nicknamed "Big Mac", is an American former professional baseball player who played his major league career with the Oakland Athletics and the St. Louis Cardinals. He is currently the hitting coach for the St...
0.390	Babe Ruth Babe Ruth George Herman Ruth, Jr. , best known as "Babe" Ruth and nicknamed "the Bambino" and "the Sultan of Swat", was an American Major League baseball player from 1914–1935... (1)
0.383	Babe Ruth Babe Ruth George Herman Ruth, Jr. , best known as "Babe" Ruth and nicknamed "the Bambino" and "the Sultan of Swat", was an American Major League baseball player from 1914–1935... (2)
0.377	Roger Maris Roger Maris Roger Eugene Maris was an American Major League Baseball right fielder. During the 1961 season, he hit a record 61 home runs for the New York Yankees, breaking Babe Ruth's single-season record of 60 home runs...
0.350	Babe Ruth Babe Ruth George Herman Ruth, Jr. , best known as "Babe" Ruth and nicknamed "the Bambino" and "the Sultan of Swat", was an American Major League baseball player from 1914–1935... (3)
0.240	Ned Williamson Ned Williamson Edward Nagle "Ned" or "Ed" Williamson was an American Major League Baseball player for 13 seasons from 1878 until 1890...
0.200	Babe Ruth Babe Ruth George Herman Ruth, Jr. , best known as "Babe" Ruth and nicknamed "the Bambino" and "the Sultan of Swat", was an American Major League baseball player from 1914–1935... (4)
0.140	Harry Stovey Harry Stovey Harry Duffield Stovey, born Harry Duffield Stowe was a 19th century Major League Baseball player and the first player in major league history to hit 100 home runs...
0.100	Charley Jones Charley Jones Charles Wesley Jones was an American left fielder in the National Association and Major League Baseball who hit 56 home runs and batted .298 during his twelve-year career...
0.070	George Hall George Hall (baseball player) George William Hall was a professional baseball player who played in the National Association and later the National League. Born in Stepney, England, Hall later immigrated to the U.S...

Selected list of pitchers giving up record-breaking home runs

1883 - Jack Neagle
Jack Neagle
John Henry Neagle , was a professional baseball pitcher in the major leagues from -. He played for the Cincinnati Reds, Philadelphia Quakers, Baltimore Orioles, and Pittsburg Alleghenys.-External links:...

, Allegheny Club of Pittsburg - Harry Stovey's 10th of the season
1919 - Waite Hoyt
Waite Hoyt
Waite Charles Hoyt was an American right-handed pitcher in Major League Baseball, one of the dominant pitchers of the 1920s, and the winningest pitcher for the New York Yankees during that decade...

, New York Yankees - Babe Ruth's 28th of the season
1920 - Dickie Kerr
Dickie Kerr
Richard Henry "Dickey" Kerr was a starting pitcher for the Chicago White Sox from -. As a rookie, he won 13 games and both his starts in the 1919 World Series, which would lead to the permanent suspensions of eight of his teammates in the Black Sox Scandal...

, Chicago White Sox - Babe Ruth's 30th of the season
1921 - Bill Bayne
Bill Bayne
William Lear Bayne was a pitcher in Major League Baseball who played for the St. Louis Browns , Cleveland Indians and Boston Red Sox . Bayne batted and threw left-handed...

, St. Louis Browns - Babe Ruth's 55th of the season
1927 - Tom Zachary
Tom Zachary
Jonathan Thompson Walton Zachary was a pitcher who had a 19-year career that lasted from 1918 to 1936. He played for the Philadelphia A's, Washington Senators, St...

, Washington Nats/Senators - Babe Ruth's 60th of the season
1961 - Tracy Stallard
Tracy Stallard
Evan Tracy Stallard is a retired American professional baseball player, a Major League Baseball pitcher from 1960 to 1966. He played with the Boston Red Sox, New York Mets and St...

, Boston Red Sox - Roger Maris' 61st of the season
1998 - Steve Trachsel
Steve Trachsel
Stephen Christopher Trachsel , nicknamed "The Human Rain Delay", is a former Major League Baseball pitcher. He is known for the long amount of time he takes to deliver the ball to home plate in between pitches. Games in which he pitches are known to be considerably longer than most games, leading...

, Chicago Cubs - Mark McGwire's 62nd of the season
2001 - Chan Ho Park, Los Angeles Dodgers - Barry Bonds' 71st of the season

This includes only the home runs that broke a record set in a previous year, not home runs that extended a record within the same year.

Single game or season achievements

Batters hitting two home runs in one inning: Accomplished close to 50 times in the course of major league history. Nomar Garciaparra

Nomar Garciaparra

Anthony Nomar Garciaparra is a former Major League Baseball player. After playing parts of 9 seasons as an All-Star shortstop for the Boston Red Sox, he played third base, first base, and designated hitter for the Oakland Athletics, first base and third base for the Los Angeles Dodgers, and...

hit two in the third inning and one in the fourth inning, in the first game on July 23, 2002 – the only player (through 2007) to hit three homers over two consecutive innings. Also notable was Fernando Tatis

Fernando Tatis

Fernando Tatís, Jr. is a Major League Baseball utility player, who is currently a free agent. He previously played for the Texas Rangers , St. Louis Cardinals , Montreal Expos , Baltimore Orioles and New York Mets...

, who hit two grand slams off of Chan Ho Park in a single inning, and Carlos Baerga

Carlos Baerga

Carlos Obed Baerga Ortiz is a former Major League Baseball player. After spending most of his career as a second baseman, he was used at various positions late in his career.-Cleveland Indians:...

was the first player to have ever hit one home run from both sides of the plate in the same inning. He did so on April 8, 1993.

Most home runs in a doubleheader: Stan Musial

Stan Musial

Stanley Frank "Stan" Musial is a retired professional baseball player who played 22 seasons in Major League Baseball for the St. Louis Cardinals . Nicknamed "Stan the Man", Musial was a record 24-time All-Star selection , and is widely considered to be one of the greatest hitters in baseball...

hit 5 on May 2, 1954. Nate Colbert

Nate Colbert

Nathan Colbert Jr. , is a former American Major League Baseball player who was a first baseman with the Houston Astros , San Diego Padres , Detroit Tigers , Montreal Expos and Oakland Athletics .Signed by his hometown St...

equalled the feat on August 1, 1972.

Bernie Williams

Bernie Williams

Bernabé Williams Figueroa Jr. is a former Major League Baseball outfielder and Puerto Rican musician.-Early life:...

and Jorge Posada

Jorge Posada

Jorge Rafael Posada Villeta is a Major League Baseball player who is currently a free agent and has played his entire career for the New York Yankees. He served as the Yankees primary catcher for most of his career, though following off-season knee surgery, he was moved to designated hitter for...

became the first teammates to each hit home runs from both sides of the plate in one game, against the Toronto Blue Jays

Toronto Blue Jays

The Toronto Blue Jays are a professional baseball team located in Toronto, Ontario, Canada. The Blue Jays are a member of the Eastern Division of Major League Baseball 's American League ....

MLB hitters with four home runs in one game
MLB hitters with four home runs in one game
Writers of Sporting News described hitting four home runs in a single Major League Baseball game as "baseball's greatest single-game accomplishment". Fifteen players have accomplished the feat to date. No player has done this more than once in his career and no player has ever hit more than four...
Batters with two grand slams in the same baseball game
Players who have hit 30 or more home runs before the All-Star break

External links

Progressive Leaders & Records for Home Runs - Baseball-Reference.com

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