List of undisputed boxing champions

Boxing associations

• The New York State Athletic Commission
  New York State Athletic Commission
  The New York State Athletic Commission or NYSAC, also known as the New York Athletic Commission, regulates all contests and exhibitions of unarmed combat within the state of New York, including licensure and supervision of promoters, boxers, professional wrestlers, seconds, ring officials,...
  
   (NYSAC), founded in 1920.
• The World Boxing Association
  World Boxing Association
  The World Boxing Association is a boxing organization that sanctions official matches, and awards the WBA world championship title at the professional level. It was previously known as the National Boxing Association before changing its name in 1962...
  
   (WBA), founded in 1921 as the National Boxing Association (NBA).
• The World Boxing Council
  World Boxing Council
  The World Boxing Council was initially established by 11 countries: the United States, Argentina, United Kingdom, France, Mexico, Philippines, Panama, Chile, Peru, Venezuela and Brazil plus Puerto Rico, met in Mexico City on February 14, 1963, upon invitation of the then President of Mexico, Adolfo...
  
   (WBC), founded in 1963.
• The International Boxing Federation
  International Boxing Federation
  The International Boxing Federation or IBF is one of four major organizations recognized by IBHOF which sanction world championship boxing bouts, alongside the WBA, WBC and WBO.- History :...
  
   (IBF), founded in 1983.
• The World Boxing Organization
  World Boxing Organization
  The World Boxing Organization is a sanctioning organization currently recognizing professional boxing world champions. The organization is recognized as one of the four major world championship groups by the IBHOF alongside the International Boxing Federation, the World Boxing Council and the...
  
   (WBO), founded in 1988.

Criteria

• 1920-1963, a boxer who held both the NYSAC and NBA (WBA) titles simultaneously.
• 1963–1983, a boxer who held both the WBA and WBC titles simultaneously.
• 1983–2007, a boxer who held the WBA, WBC, and IBF titles simultaneously.
• 2007–Present, a boxer who holds the WBA, WBC, IBF and WBO titles simultaneously.

Heavyweight

Reign Began	Reign Ended	Champion	Recognition
July 24, 1922	September 23, 1926	Jack Dempsey Jack Dempsey William Harrison "Jack" Dempsey was an American boxer who held the world heavyweight title from 1919 to 1926. Dempsey's aggressive style and exceptional punching power made him one of the most popular boxers in history. Many of his fights set financial and attendance records, including the first...	NYSAC & NBA
September 23, 1926	July 31, 1928	Gene Tunney Gene Tunney James Joseph "Gene" Tunney was the world heavyweight boxing champion from 1926-1928 who defeated Jack Dempsey twice, first in 1926 and then in 1927. Tunney's successful title defense against Dempsey is one of the most famous bouts in boxing history and is known as The Long Count Fight...	NYSAC & NBA
June 12, 1930	January 7, 1931	Max Schmeling Max Schmeling Maximillian Adolph Otto Siegfried Schmeling was a German boxer who was heavyweight champion of the world between 1930 and 1932. His two fights with Joe Louis in the late 1930s transcended boxing, and became worldwide social events because of their national associations...	NYSAC & NBA
June 13, 1935	June 22, 1937	James J. Braddock James J. Braddock James Walter "The Cinderella Man" Braddock was an American boxer who was the world heavyweight champion from 1935 to 1937....	NYSAC & NBA
June 22, 1937	March 1, 1949	Joe Louis Joe Louis Joseph Louis Barrow , better known as Joe Louis, was the world heavyweight boxing champion from 1937 to 1949. He is considered to be one of the greatest heavyweights of all time...	NYSAC & NBA
September 27, 1950	July 18, 1951	Ezzard Charles Ezzard Charles Ezzard Mack Charles was an African-American professional boxer and former world heavyweight champion. He holds wins over numerous Hall of Fame fighters in three different weight classes. Charles retired with a record of 93 wins, 25 losses and 1 draw.-Career:He was born in Lawrenceville, Georgia,...	NYSAC & NBA
July 18, 1951	September 23, 1952	Jersey Joe Walcott Jersey Joe Walcott Arnold Raymond Cream , better known as Jersey Joe Walcott, was a world heavyweight boxing champion. He broke the world's record for the oldest man to win the world's Heavyweight title when he earned it at the age of , a record that would be broken on November 5, 1994, by George Foreman, who...	NYSAC & NBA
September 23, 1952	April 27, 1956	Rocky Marciano Rocky Marciano Rocky Marciano , born Rocco Francis Marchegiano, was an American boxer and the heavyweight champion of the world from September 23, 1952, to April 27, 1956. Marciano is the only champion to hold the heavyweight title and go undefeated throughout his career. Marciano defended his title six times...	NYSAC & NBA
November 30, 1956	June 26, 1959	Floyd Patterson Floyd Patterson Floyd Patterson was an American heavyweight boxer and former undisputed heavyweight champion. At 21, Patterson became the youngest man to win the world heavyweight title. He was also the first heavyweight boxer to regain the title. He had a record of 55 wins 8 losses and 1 draw, with 40 wins by...	NYSAC & NBA
June 26, 1959	June 20, 1960	Ingemar Johansson Ingemar Johansson Jens Ingemar Johansson was a Swedish boxer and former heavyweight champion of the world. Johansson was the fifth heavyweight champion born outside the United States. In 1959 he defeated Floyd Patterson by TKO in the third round, after flooring Patterson seven times in that round, to win the World...	NYSAC & NBA
June 20, 1960	September 25, 1962	Floyd Patterson Floyd Patterson Floyd Patterson was an American heavyweight boxer and former undisputed heavyweight champion. At 21, Patterson became the youngest man to win the world heavyweight title. He was also the first heavyweight boxer to regain the title. He had a record of 55 wins 8 losses and 1 draw, with 40 wins by...	NYSAC & NBA
September 25, 1962	February 25, 1964	Sonny Liston Sonny Liston Charles L. "Sonny" Liston was a professional boxer and ex-convict known for his toughness, punching power, and intimidating appearance who became world heavyweight champion in 1962 by knocking out Floyd Patterson in the first round...	NYSAC & WBA
February 25, 1964	September 19, 1964	Muhammad Ali Muhammad Ali Muhammad Ali is an American former professional boxer, philanthropist and social activist...  as Cassius Clay	NYSAC, WBC & WBA
Ali was stripped of the WBA title in September 1964, after agreeing to an immediate rematch with Liston, which was against the body's rules at the time.
February 6, 1967	April 28, 1967	Muhammad Ali Muhammad Ali Muhammad Ali is an American former professional boxer, philanthropist and social activist...	NYSAC, WBC & WBA
Ali reunited the belts by beating WBA champion Ernie Terrell on February 6, 1967. He was stripped of the WBA belt on April 28, 1967 for refusing induction into the United States army, but retained recognition by the WBC until February 16, 1970.
March 8, 1971	January 22, 1973	Joe Frazier Joe Frazier Joseph William "Joe" Frazier , also known as Smokin' Joe, was an Olympic and Undisputed World Heavyweight boxing champion, whose professional career lasted from 1965 to 1976, with a one-fight comeback in 1981....	WBC & WBA
On February 16, 1970, Frazier defeated Jimmy Ellis for Ellis' WBA belt and the vacant WBC belt. Frazier gained universal recognition by defeating Ali on March 8, 1971.
January 22, 1973	October 30, 1974	George Foreman George Foreman George Edward Foreman is an American two-time former World Heavyweight Boxing Champion, Olympic gold medalist, ordained Baptist minister, author and successful entrepreneur...	WBC & WBA
October 30, 1974	February 15, 1978	Muhammad Ali Muhammad Ali Muhammad Ali is an American former professional boxer, philanthropist and social activist...	WBC & WBA
February 15, 1978	March 18, 1978	Leon Spinks Leon Spinks Leon Spinks is a former American boxer. He had an overall record of 26 wins, 17 losses and 3 draws as a professional, with 14 knockout wins, and was the former World Boxing Council and World Boxing Association heavyweight champion of the world...	WBC & WBA
Leon Spinks was stripped of the WBA belt for defending against Muhammad Ali instead of Ken Norton, who was their #1 contender.
August 1, 1987	February 11, 1990	Mike Tyson Mike Tyson Michael Gerard "Mike" Tyson is a retired American boxer. Tyson is a former undisputed heavyweight champion of the world and holds the record as the youngest boxer to win the WBC, WBA and IBF world heavyweight titles, he was 20 years, 4 months and 22 days old...	WBC, WBA & IBF
Mike Tyson became the Undisputed Heavyweight Champion by unifying his WBA and WBC, with Tony Tucker's IBF belt. The Ring Magazine later recognized him as champion on June 27, 1988.
February 11, 1990	October 25, 1990	James Douglas	WBC, WBA & IBF
October 25, 1990	November 13, 1992	Evander Holyfield Evander Holyfield Evander Holyfield is a professional boxer from the United States. He is a former undisputed world champion in both the cruiserweight and heavyweight divisions, earning him the nickname "The Real Deal"...	WBC, WBA & IBF
November 13, 1992	December 14, 1992	Riddick Bowe Riddick Bowe Riddick Lamont Bowe is a retired American boxer. He is a two-time heavyweight champion and a former undisputed heavyweight champion...	WBC, WBA & IBF
Bowe was stripped of his WBC championship for refusing to fight Lennox Lewis Lennox Lewis Lennox Claudius Lewis, CM, CBE is a retired boxer and the most recent British undisputed world heavyweight champion. He holds dual British and Canadian citizenship... .
November 13, 1999	April 29, 2000	Lennox Lewis Lennox Lewis Lennox Claudius Lewis, CM, CBE is a retired boxer and the most recent British undisputed world heavyweight champion. He holds dual British and Canadian citizenship...	WBC, WBA & IBF
Lennox Lewis became undisputed champion by defeating Evander Holyfield, successfully unifiying his WBC belt with Holyfield's WBA and IBF belts. With that victory, he was also awarded the vacant IBO title. Lewis was stripped of his WBA belt due to a contract dispute regarding a clause in the 2nd Holyfield contract which stipulated he must fight the WBA number 1 contender next. The number 1 contender at that time was Henry Akinwande but he was ill so Ruiz was later moved up to number 1. The WBA gave Lewis permission under these circumstances to fight WBC ranked contender Michael Grant next as long as he agreed to fight Ruiz in the following bout. Lewis agreed but Ruiz's promoter challenged the WBA's decision in court.

Cruiserweight

Reign Began	Reign Ended	Champion	Recognition
April 16, 1988	1988	Evander Holyfield Evander Holyfield Evander Holyfield is a professional boxer from the United States. He is a former undisputed world champion in both the cruiserweight and heavyweight divisions, earning him the nickname "The Real Deal"...	IBF, WBA & WBC
Evander Holyfield became the first undisputed Cruiserweight Champion by defeating Carlos De León, to unify his WBA and IBF belts with De Leon's WBC belt. He relinquished all the belts after moving up to the Heavyweight division. The Ring Magazine stopped recognizing the weight class in 1987.
January 7, 2006	March 31, 2006	O'Neil Bell O'Neil Bell O'Neil "Super Nova" Bell is a boxer who is a former undisputed cruiserweight champion, having held the WBA, WBC, IBF, and The Ring magazine cruiserweight titles.- Professional career :...	IBF, WBA & WBC
O'Neil Bell unifies his IBF belt with Jean Marc Mormeck's WBA and WBC belt to become the second undisputed champion of the division's history. He was later stripped for not agreeing to fight the IBF's #1 challenger Steve Cunningham.

Light Heavyweight

Reign Began	Reign Ended	Champion	Recognition
June 1, 1963	March 30, 1965	Willie Pastrano Willie Pastrano Wilfred Raleigh Pastrano was a light heavyweight boxer who held the world crown from 1963 until 1965.-Early life:...	WBC & WBA
March 30, 1965	December 16, 1966	José Torres José Torres José Torres , was a Puerto Rican professional boxer. As an amateur boxer, he won a silver medal in the junior middleweight at the 1956 Olympic Games in Melbourne. In 1965, he defeated Willie Pastrano to win the WBC and WBA light heavyweight championships...	WBC & WBA
December 16, 1966	May 24, 1968	Dick Tiger Dick Tiger Dick Tiger CBE was a boxer from Ubahu village, Amaigbo, Nigeria, who emigrated to Liverpool and later to the United States of America. Tiger was a member of the Igbo ethnic group...	WBC WBA
May 24, 1968	9 December 1970	Bob Foster	WBC & WBA
Bob Foster was stripped of the WBA championship for refusing to face a mandatory challenger.
7 April 1972	16 September 1974	Bob Foster	WBC & WBA
Foster unified the titles again by defeating Vicente Rondon Vicente Rondon Vicente Paúl Rondón was a former WBA light heavyweight boxing world champion.- Personal background :Rondon was born in extreme poverty in Río Chico, Miranda, Venezuela, and decided to escape his poor surroundings by enlisting in the Venezuelan military at an early age.- Professional career :When...  on 7 April 1972. He relinquished both belts upon his retirement on 16 September 1974.
March 18, 1983	September 21, 1985	Michael Spinks Michael Spinks Michael Spinks is a retired American boxer who was a world champion in the light-heavyweight and heavyweight divisions...	WBA, WBC & IBF
Michael Spinks unified the title by defeating Dwight Muhammad Qawi. He later added the IBF title to his undisputed recognition. He vacated all of the belts after moving to the heavyweight division.
June 5, 1999	September 7, 2002	Roy Jones Jr. Roy Jones Jr. Roy Jones, Jr. is an American boxer. As a professional he has captured numerous world titles in the middleweight, super middleweight, light heavyweight, and heavyweight divisions...	WBA, WBC & IBF
Roy Jones Jr. unified the title after defeating Reggie Johnson for his IBF belt, successfully unifying his WBA and WBC belts. Jones relinquished his titles after he moved to the heavyweight division.

Middleweight

Reign Began	Reign Ended	Champion	Recognition
August 10, 1963	December 12, 1963	Dick Tiger Dick Tiger Dick Tiger CBE was a boxer from Ubahu village, Amaigbo, Nigeria, who emigrated to Liverpool and later to the United States of America. Tiger was a member of the Igbo ethnic group...	WBA & WBC
December 12, 1963	October 21, 1965	Joey Giardello Joey Giardello Carmine Orlando Tilelli was an American boxer who was the middleweight champion of the world from 1963 to 1965, and was better known by his professional pseudonym of Joey Giardello.-Early life:...	WBA & WBC
October 21, 1965	April 17, 1967	Emile Griffith Emile Griffith Emile Alphonse Griffith is a former boxer who was the first fighter from the U.S. Virgin Islands ever to become a world champion. He is perhaps best known for his controversial third fight with Benny Paret in 1962 for the welterweight world championship...	WBA & WBC
April 17, 1967	September 29, 1967	Nino Benvenuti	WBA & WBC
September 29, 1967	March 4, 1968	Emile Griffith Emile Griffith Emile Alphonse Griffith is a former boxer who was the first fighter from the U.S. Virgin Islands ever to become a world champion. He is perhaps best known for his controversial third fight with Benny Paret in 1962 for the welterweight world championship...	WBA & WBC
March 4, 1968	November 7, 1970	Nino Benvenuti	WBA & WBC
November 7, 1970	February 9, 1974	Carlos Monzón Carlos Monzón Carlos Monzón was an Argentine professional boxer who held the undisputed world middleweight title for 7 years, during which he successfully defended the title 14 times....	WBA & WBC
Monzon was stripped of the WBC championship for not facing his mandatory challenger, Rodrigo Valdez.
June 26, 1976	July 30, 1977	Carlos Monzón Carlos Monzón Carlos Monzón was an Argentine professional boxer who held the undisputed world middleweight title for 7 years, during which he successfully defended the title 14 times....	WBA & WBC
Novermber 5,1977	May 22, 1978	Rodrigo Valdez Rodrigo Valdez Rodrigo Valdéz is a former boxer from Colombia who was a two-time world middleweight champion and former undisputed middleweight champion of the world whose rivalry with Carlos Monzón has long been considered among the most legendary boxing rivalries. Valdez was trained by International Boxing...	WBA & WBC
May 22, 1978	June 30, 1979	Hugo Corro Hugo Corro Hugo Pastor Corro , better known plainly as Hugo Corro, was a former boxer from Argentina who was world Middleweight champion....	WBA & WBC
June 30, 1979	March 16, 1980	Vito Antuofermo Vito Antuofermo Vito Antuofermo is an Italian-American actor who is also a former world Middleweight boxing champion.-Background:Antuofermo was born in Italy, in the town of Palo del Colle, which is located about 15 km inland from the city of Bari. but his family moved to the United States when he was 17...	WBA & WBC
March 16, 1980	September 27, 1980	Alan Minter Alan Minter Alan Minter is a former middleweight world champion boxer.-Amateur career:Minter was the 1971 ABA Middleweight Champion. He won the bronze medal at the 1972 Munich Olympic Games...	WBA & WBC
September 27, 1980	June 6, 1987	Marvin Hagler Marvin Hagler Marvelous Marvin Hagler , is a former professional boxer who was undisputed world middleweight champion between 1980 and 1987. Hagler holds the distinction of having the highest KO% of all middleweight champions at 78%...	WBA, WBC & IBF
Hagler was recognized as the inaugural IBF champion, adding the belt to his undisputed status. He lost the IBF and WBA belt recognitions after deciding to fight Sugar Ray Leonard Sugar Ray Leonard Sugar Ray Leonard is an American retired professional boxer and occasional actor. He was named Ray Charles Leonard, after his mother's favorite singer, Ray Charles... . He lost the WBC belt after losing to Leonard.
September 29, 2001	July 16, 2005	Bernard Hopkins Bernard Hopkins Bernard Hopkins Jr, known as The Executioner is an American boxer and the current Ring Magazine and WBC light heavyweight champion...	WBA, WBC, IBF & WBO
Bernard Hopkins became the undisputed champion after defeating Félix Trinidad in a Middleweight tournament to successfully unify the WBC WBA and IBF belts. He later added the WBO to his undisputed status after defeating Oscar De La Hoya Oscar de la Hoya Oscar De La Hoya is a retired American boxer of Mexican descent. Nicknamed "The Golden Boy", De La Hoya won a gold medal at the Barcelona Olympic Games shortly after graduating from Garfield High School. De La Hoya comes from a boxing family. His grandfather Vicente, father Joel Sr., and brother... , becoming the first man to ever hold all four titles simultaneously.
July 16, 2005	December 14, 2006	Jermain Taylor Jermain Taylor Jermain Taylor is an American professional boxer and former undisputed middleweight champion. He made his professional boxing debut in 2001 and won his first 25 bouts, which included victories over former champions Raúl Márquez and William Joppy...	WBA, WBC, IBF & WBO
Taylor lost his IBF belt for taking a rematch against Hopkins instead of fighting the IBF #1 challenger Arthur Abraham. He officially lost his undisputed status after being stripped of his WBA belt on December 14, 2006

Junior Middleweight

Reign Began	Reign Ended	Champion	Recognition
1962-10-20	1963-04-29	Denny Moyer Denny Moyer Denny Moyer was an American boxer who held the world light middleweight title between 1962 and 1963. He finished his career with a 97–38–4 record.-Early life:...	WBA & WBC
1963-04-29	1963-09-07	Ralph Dupas Ralph Dupas Ralph Dupas was a boxer from New Orleans who won the world light middleweight championship.-Early boxing career:...	WBA & WBC
1963-09-07	1965-06-18	Sandro Mazzinghi	WBA & WBC
1965-06-18	1966-06-25	Nino Benvenuti	WBA & WBC
1966-06-25	1968-05-26	Ki Soo Kim Ki Soo Kim Ki-Soo Kim was a South Korean southpaw boxer at middleweight. He is a South Korea's first world boxing champion....	WBA & WBC
1968-05-26	1968-10-25-Stripped	Sandro Mazzinghi	WBA & WBC
1969-03-17	1970-07-09	Freddie Little Freddie Little Freddie Little Freddie Little Freddie Little (born 1936-04-25 in Picayune, MS, is a former American boxer at light middleweight.- Professional career :Little turned pro in 1957 and challenged for the World, WBC, and WBA light middleweight title against Ki-Soo Kim, but lost by split decision in...	WBA & WBC
1970-07-09	1971-10-31	Carmelo Bossi Carmelo Bossi Carmelo Bossi was an Italian boxer who held the European welterweight and world junior middleweight titles. Bossi boxed from 1961 to 1971 and his final overall record was 40 wins , 8 defeats and 3 draws.- Amateur career :...	WBA & WBC
1971-10-31	1974-06-04	Koichi Wajima Koichi Wajima Koichi Wajima was a professional boxer in the super welterweight division. He is a former WBC and WBA champion.- Childhood and Early Career :...	WBA,& WBC
1974-06-04	1975-01-21	Oscar Albarado Oscar Albarado Oscar Albarado was an American boxer. He competed in the light middleweight division.- Professional career :...	WBA,& WBC
1975-01-21	1975-03-22	Koichi Wajima Koichi Wajima Koichi Wajima was a professional boxer in the super welterweight division. He is a former WBC and WBA champion.- Childhood and Early Career :...	WBA & WBC
March 13, 2004	November 20, 2004	Winky Wright Winky Wright Ronald Lamont "Winky" Wright is an American boxer, the former undisputed world light middleweight champion and a current middleweight contender....	WBA, WBC & IBF
Winky Wright became the first undisputed champion of the light middleweight division after unifying his IBF belt with Sugar Shane Mosley's WBA and WBC belts. Wright lost the IBF belt for taking a rematch against Mosley.

Welterweight

Reign Began	Reign Ended	Champion	Recognition
March 21, 1963	June 8, 1963	Luis Manuel Rodríguez Luis Manuel Rodriguez Luis Manuel Rodríguez was a professional boxing champion. Known as "El Feo", Rodriguez began his career in pre-Castro Havana. In Cuba, Rodriguez twice defeated the ill-fated future welterweight champion Benny Kid Paret.After the Cuban Revolution, Rodríguez campaigned in the United States...	WBA & WBC
June 8, 1963	December 10, 1965	Emile Griffith Emile Griffith Emile Alphonse Griffith is a former boxer who was the first fighter from the U.S. Virgin Islands ever to become a world champion. He is perhaps best known for his controversial third fight with Benny Paret in 1962 for the welterweight world championship...	WBA & WBC
Emile Griffith relinquished the title after moving to the middleweight division.
November 28, 1966	April 18, 1969	Curtis Cokes Curtis Cokes Curtis Cokes is a former boxer from Dallas, Texas, United States. Cokes was world welterweight champion, and he was famous for his training regimen, which he also imposed on other boxers training with him.-Pre-championship career:...	WBA & WBC
Cokes reunited the titles after defeating Jean Josselin.
April 18, 1969	December 3, 1970	José Nápoles José Napoles José Ángel Nápoles, nicknamed Mantequilla , is a Cuban-Mexican boxer and former world welterweight champion, who is frequently ranked as one of the greatest fighters of all time in that division...	WBA & WBC
December 3, 1970	June 4, 1971	Billy Backus Billy Backus Billy Backus, born March 5, 1943 in Canastota, New York, is a former world boxing champion. In the summer of 2006 Backus retired from his correctional facility job and moved to South Carolina.- Early boxing career :...	WBA & WBC
June 4, 1971	May 1975	José Nápoles José Napoles José Ángel Nápoles, nicknamed Mantequilla , is a Cuban-Mexican boxer and former world welterweight champion, who is frequently ranked as one of the greatest fighters of all time in that division...	WBA & WBC
Nápoles gave up the WBA belt after rematching Armando Muniz.
September 16, 1981	February 15, 1982	Sugar Ray Leonard Sugar Ray Leonard Sugar Ray Leonard is an American retired professional boxer and occasional actor. He was named Ray Charles Leonard, after his mother's favorite singer, Ray Charles...	WBA & WBC
Sugar Ray Leonard unified his WBC with Thomas Hearns's WBA to become the first undisputed champ in seven years. Leonard later relinquished the title after retiring from boxing because of a detached retina.
December 6, 1985	September 27, 1986	Donald Curry Donald Curry Donald Curry is a retired boxer from Fort Worth, Texas, United States. Nicknamed the "Lone Star Cobra," Curry was the Undisputed World Welterweight Champion and the WBC Super Welterweight Champion.-Amateur career:...	WBA, WBC & IBF
Donald Curry unified his WBA and IBF titles with Milton McCrory's WBC title to become the next undisputed champ.
September 27, 1986	1987	Lloyd Honeyghan Lloyd Honeyghan Lloyd Honeyghan is a retired British boxer. Born in Jamaica, he was WBC/WBA & IBF welterweight champion from 1986 to 1987. and WBC welterweight champion from 1988 to 1989....	WBA, WBC & IBF
Honeyghan later relinquished the WBA title in protest at the body's approval of world title fights being staged in Apartheid South Africa.
December 13, 2003	February 5, 2005	Cory Spinks Cory Spinks Corey Spinks is a professional boxer. He is a former IBF Light middleweight champion, and a former Undisputed Welterweight Champion....	WBA, WBC & IBF
Spinks won the undisputed title by unifying his IBF belt with Ricardo Mayorga's WBC and WBA belts.
February 5, 2005	January 7, 2006	Zab Judah Zab Judah Zabdiel Judah is an American professional boxer. Judah has won five world titles between the junior welterweight and welterweight divisions, and is a former undisputed welterweight champion....	WBA, WBC & IBF
Judah lost his undisputed championship to Carlos Baldomir, but despite being recognized as the "true" welterweight champion, Baldomir did not pay the sanctioning fees for the WBA or IBF. Consequently, the WBA relinquished Judah as its champion, while the IBF continued to recognise him. Judah later lost the IBF title to Floyd Mayweather Jr. Floyd Mayweather Jr. Floyd Joy Mayweather, Jr. is an American professional boxer. He is a five-division world champion, where he has won seven world titles, as well as the lineal championship in three different weight classes...

Junior Welterweight

Reign Began	Reign Ended	Champion	Recognition
March 21, 1963	June 15, 1963	Roberto Cruz Roberto Cruz Roberto de la Cruz is a former Filipino professional boxer. Cruz won the WBA World Light Welterweight title in a career that spanned from 1955 to 1968.-Professional career:...	WBA & WBC
June 15, 1963	January 18, 1965	Eddie Perkins Eddie Perkins Eddie Perkins was an American light welterweight boxer.-Professional career:Perkins turned professional in 1956 and captured the World Boxing Association light welterweight title with a decision win over Duilio Loi in 1962, but lost the belt in a rematch later that year...	WBA & WBC
January 18, 1965	April 29, 1966	Carlos Hernández Carlos Morocho Hernandez Carlos Enrique Hernández Ramos was a world champion professional boxer. Known professionally as Carlos Morocho, he ended his career following a KO by Scottish boxer Ken Buchanan.-History:...	WBA & WBC
April 29, 1966	April 30, 1967	Sandro Lopopolo Sandro Lopopolo Sandro Lopopolo was an Italian light welterweight boxer, who won the silver medal at the 1960 Summer Olympics in Rome, and fought as a professional from 1961 to 1973. Lopopolo held the Italian, European and World light welterweight titles during his career...	WBA & WBC
April 30, 1967	November 16, 1967 (Vacated)	Takeshi Fuji Takeshi Fuji Takeshi Fuji is a former professional boxer from Hawaii. He is a former world super lightweight champion.- Biography :...	WBA & WBC
November 3, 2001	January 19, 2003	Kostya Tszyu	WBA, WBC & IBF
Kostya Tszyu became the undisputed Junior Welterweight champ after defeating Zab Judah Zab Judah Zabdiel Judah is an American professional boxer. Judah has won five world titles between the junior welterweight and welterweight divisions, and is a former undisputed welterweight champion....  to successfully unify his WBA and WBC belt with Judah's IBF belt. Tszyu was stripped of the WBA and WBC titles because of extended inactivity due to training injuries and lost his IBF belt to Ricky Hatton Ricky Hatton Richard John Hatton MBE, more commonly known as Ricky "the Hitman" Hatton, , is a former British professional boxer, and currently a promoter.... .

Lightweight

Reign Began	Reign Ended	Champion	Recognition
April 7, 1963	April 10, 1965	Carlos Ortiz Carlos Ortiz For the Cuban wrestler with the same name see Carlos Julian OrtízCarlos Ortiz is a Puerto Rican who was a three time world boxing champion, twice in the lightweight division and once in the Jr. Welterweights....	WBA & WBC
April 10, 1965	November 13, 1965	Ismael Laguna Ismael Laguna Ismael Laguna Meneses was a professional boxer. He was inducted into the International Boxing Hall of Fame in 2001.Known as "El Tigre Colonense", Laguna was the Panamanian Featherweight Champion from 1962-63...	WBA & WBC
November 13, 1965	June 29, 1968	Carlos Ortiz Carlos Ortiz For the Cuban wrestler with the same name see Carlos Julian OrtízCarlos Ortiz is a Puerto Rican who was a three time world boxing champion, twice in the lightweight division and once in the Jr. Welterweights....	WBA & WBC
June 29, 1968	February 18, 1969	Carlos Cruz	WBA & WBC
February 18, 1969	March 3, 1970	Mando Ramos Mando Ramos Armando Ramos was a Mexican-American professional boxer and the former two-time WBC and WBA Lightweight Champion. He was born in Long Beach, California. Armando "Mando" Ramos was one of the most popular and exciting fighters in Southern California during the 1960s. Ramos was an outstanding amateur...	WBA & WBC
March 3, 1970	September 15, 1970	Ismael Laguna Ismael Laguna Ismael Laguna Meneses was a professional boxer. He was inducted into the International Boxing Hall of Fame in 2001.Known as "El Tigre Colonense", Laguna was the Panamanian Featherweight Champion from 1962-63...	WBA & WBC
Laguna gave up the WBC title.
February 12, 1971	June 25, 1971	Ken Buchanan Ken Buchanan Ken Buchanan is a former boxing undisputed world lightweight champion. Many consider Buchanan to be the best boxer ever to come out of Scotland.- Early career :...	WBA & WBC
Buchanan gave up the WBC title after a contractual dispute, although he is still recognized as the true champion.
January 21, 1978	January 1979	Roberto Durán Roberto Durán Roberto Durán Samaniego is a retired professional boxer from Panama, widely regarded as one of the greatest boxers of all time. A versatile brawler in the ring, he was nicknamed "Manos de Piedra" during his career....	WBA & WBC
Duran, the WBA champion, won the undisputed title after defeating WBC Champion Estaban De Jesus. Duran gave up the titles after moving up to the welterweight division.
August 11, 1990	January 18, 1992	Pernell Whitaker Pernell Whitaker Pernell Whitaker , nicknamed "Sweet Pea", is a professional boxing trainer and retired American professional boxer...	WBA, WBC & IBF
Whitaker, the unified IBF and WBC champion, won Juan Nazario Juan Nazario Juan Nazario is a former professional boxer. During his career, which lasted from 1982 to 1993, Nazario won the WBA world lightweight title. His first world title challenge came in 1987 when he fought fellow Puerto Rican Edwin Rosario for the WBA belt, Roasario won the fight by an eighth round... 's WBA belt becoming the undisputed champ . Whitaker relinquished all of the belts after moving to the junior welterweight division.

Super Featherweight

Reign Began	Reign Ended	Champion	Recognition
February 16, 1963	June 15, 1967	Flash Elorde	WBA & WBC
June 15, 1967	December 14, 1967	Yoshiaki Numata Yoshiaki Numata Yoshiaki Numata is a former world Junior Lightweight boxing champion.Numata turned professional in 1962 and won the WBC and WBA super featherweight world titles by defeating Flash Elorde by decision in 1967, although Numata was knocked down in the 3rd round. He lost the title in his first...	WBA & WBC
December 14, 1967	January 19, 1969	Hiroshi Kobayashi Hiroshi Kobayashi Hiroshi Kobayashi, , is a former professional boxer.Kobayashi turned pro in 1962 and won the WBC and WBA Super Featherweight Title in 1967 by defeating Yoshiaki Numata by 12th round KO, in a bout where Numata was down once in the 6th and three times in the 12th roundand so becoming the undisputed...	WBA & WBC
Kobayashi is stripped of his WBC title for failing to fight Rene Barrientos, despite a written agreement.

Featherweight

Reign Began	Reign Ended	Champion	Recognition
March 21, 1963	September 26, 1964	Sugar Ramos Sugar Ramos Ultiminio Ramos is a Cuban-Mexican boxer who is better known as Sugar Ramos. Ramos fought out of Mexico where he was adopted as a national hero...	WBA & WBC
September 26, 1964	October 14, 1967	Vicente Saldivar Vicente Saldivar Vicente Samuel Saldivar García was a Mexican boxer in the Featherweight division and was a part of the 1960 Mexican Olympic team. He was a former WBC and a two-time WBA Featherweight Champion...	WBA & WBC
Saldivar retired after his title defense against Howard Winstone Howard Winstone Howard Winstone, MBE was a Welsh world champion boxer, born in Merthyr Tydfil, Wales. As an amateur, Winstone won the Amateur Boxing Association bantamweight title in 1958, and a Commonwealth Games Gold Medal at the 1958 British Empire and Commonwealth Games in Cardiff-Boxing style:In his early... .

Bantamweight

Reign Began	Reign Ended	Champion	Recognition
March 19, 1972	July 29, 1972	Rafael Herrera Rafael Herrera Rafael Herrera is a former boxer from Mexico. He has won world titles in the Bantamweight division.- Professional career :...	WBA & WBC
July 29, 1972	April 14, 1973	Enrique Pinder	WBA & WBC
Pinder was stripped of the WBC belt shortly after winning the title for not defending against Rodolfo Martinez Rodolfo Martínez Rodolfo Martínez was a Mexican boxer in the Super Featherweight division. He is a former NABF Super Bantamweight, Bantamweight and the WBC Bantamweight Champion.-Early life:... .

Super Flyweight

Reign Began	Reign Ended	Champion	Recognition
July 5, 1984	March 30, 1986	Jiro Watanabe Jiro Watanabe is a Japanese former boxerWatanabe, who fought only in Japan and South Korea, was one of the first World Super flyweight champions, as the division was relatively new when he was crowned.-Biography:...	WBA & WBC
Watanabe had his WBA title stripped for unifying the Super Flyweight championship with the WBC champion Payao Poontarat. He was regarded as the undisputed champion until his loss to Gilberto Roman Gilberto Roman Gilberto Román was a Mexican boxer in the Super Flyweight division and a member of the 1980 Mexican Olympic team. Román was a two-time WBC Super Flyweight Champion and is considered by many fans to be one of the great champions in this division... .
November 1, 2008	December 12, 2009	Vic Darchinyan Vic Darchinyan Vakhtang "Vic" Darchinyan is an Armenian professional boxer discovered by HyeFighters. He is a three-division world champion, having won eight titles in three different weight classes. He is a former IBF Flyweight World Champion and a former Undisputed WBA, WBC & IBF Super Flyweight World...	WBA, WBC & IBF
Darchinyan had vacated his IBF belt in order to move up to bantamweight to fight IBF champion Joseph Agbeko Joseph Agbeko Joseph Agbeko is a professional boxer with a record of 28-2 . The Ring Magazine currently rates Agbeko at number three in the bantamweight division.-Professional career:...  Darchinyan was still recognized as super flyweight champion by both the WBC and WBA.

Flyweight

Year Reign	Year Ended	Champion	Recognition
June 6, 1923	July 4, 1925	Pancho Villa	World Flyweight Championship

See also

• List of WBC world champions
• List of WBA world champions
• List of IBF world champions

External links

• http://www.boxrec.com
• http://www.IBHOF.com
• Ken Buchanan - Lightweight Champion of the World - Ken Buchanan site with detailed bio, statistics, full fights and more