This is a list of current and past undisputed champions of boxing. [edit] Heavyweight | Reign Began | Reign Ended | Champion | Recognition | | July 24, 1922 | September 23, 1926 |  Jack Dempsey | NYSAC, NBA, The Ring | | September 23, 1926 | July 31, 1928 | Gene Tunney | NYSAC, NBA, The Ring | | June 12, 1930 | January 7, 1931 |  Max Schmeling | NYSAC, NBA, The Ring | | June 13, 1935 | June 22, 1937 | James J. Braddock | NYSAC, NBA, The Ring | | June 22, 1937 | March 1, 1949 | Joe Louis | NYSAC, NBA, The Ring | | September 27, 1950 | July 18, 1951 | Ezzard Charles | NYSAC, NBA, The Ring | | July 18, 1951 | September 23, 1952 | Jersey Joe Walcott | NYSAC, NBA, The Ring | | September 23, 1952 | April 27, 1956 | Rocky Marciano | NYSAC, NBA, The Ring | | November 30, 1956 | June 26, 1959 | Floyd Patterson | NYSAC, NBA, The Ring | | June 26, 1959 | June 20, 1960 |  Ingemar Johansson | NYSAC, NBA, The Ring | | June 20, 1960 | September 25, 1962 | Floyd Patterson | NYSAC, NBA, The Ring | | September 25, 1962 | February 25, 1964 | Sonny Liston | NYSAC, WBA, The Ring | | February 25, 1964 | September 19, 1964 | Muhammad Ali as Cassius Clay | NYSAC, WBC, WBA, The Ring | - 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.
| | March 22, 1967 | April 28, 1967 | Muhammad Ali | NYSAC, WBC, WBA, The Ring | - Ali reunited the belts by beating WBA champion Ernie Terrell on March 22, 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 | WBC, WBA, The Ring | - 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 | WBC, WBA, The Ring | | October 30, 1974 | February 15, 1978 | Muhammad Ali | WBC, WBA, The Ring | | February 15, 1978 | March 18, 1978 | Leon Spinks | WBC, WBA, The Ring | - 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 | WBC, WBA, IBF, The Ring | - 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, The Ring | | October 25, 1990 | November 13, 1992 | Evander Holyfield | WBC, WBA, IBF, The Ring | | November 13, 1992 | December 14, 1992 | Riddick Bowe | WBC, WBA, IBF, The Ring | - Bowe was stripped of his WBC championship for refusing to fight Lennox Lewis.
| | November 13, 1999 | April 29, 2000 |  Lennox Lewis | WBC, WBA, IBF, IBO | - 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 Micheal 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.
| [edit] Cruiserweight | Reign Began | Reign Ended | Champion | Recognition | | April 16, 1988 | 1988 | Evander Holyfield | IBF, WBA & WBC | - Evander Holyfield became the first undisputed Cruiserweight Champion by defeating Carlos De Leon, 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.
| | January 7, 2006 | March 31, 2006 | O'Neil Bell | 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.
| | March 8, 2008 | May 12, 2008 | David Haye | WBC, WBA, WBO & The Ring | - David Haye defeated Enzo Maccarinelli to unify Maccarinelli's WBO belt with his WBA and WBC belts. On May 12, 2008, Haye vacated his cruiserweight titles in order to move up to heavyweight.
| [edit] Light Heavyweight | Reign Began | Reign Ended | Champion | Recognition | | June 1, 1963 | March 30, 1965 | Willie Pastrano | WBC WBA | | March 30, 1965 | December 16, 1966 |  Jose Torres | WBC WBA | | December 16, 1966 | May 24, 1968 |  Dick Tiger | 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 on 7 April 1972. He relinquished both belts upon his retirement on 16 September 1974.
| | March 18, 1983 | September 21, 1985 | Michael Spinks | 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 13, 1997 | June 16, 1997 |  Dariusz Michalczewski | WBA, WBO, IBF | | June 5, 1999 | September 7, 2002 | Roy Jones Jr. | 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.
| [edit] Super Middleweight | Reign Began | Reign Ended | Champion | Recognition | | November 4, 2007 | June 28, 2008 | Joe Calzaghe | WBC, WBA, WBO & The Ring | - Joe Calzaghe beat Mikkel Kessler to unify his WBO belt with Kessler's WBA/WBC belts, Calzaghe had previously held the IBF tite after beating Jeff Lacy but vacated it on November 27 2006. Calzaghe relinquished his titles after he moved to the light heavyweight division to fight Bernard Hopkins.
| [edit] Middleweight | Reign Began | Reign Ended | Champion | Recognition | | August 10, 1963 | December 12, 1963 | Dick Tiger | WBA WBC | | December 12, 1963 | October 21, 1965 | Joey Giardello | WBA WBC | | October 21, 1965 | April 17, 1967 |  Emile Griffith | WBA WBC | | April 17, 1967 | September 29, 1967 |  Nino Benvenuti | WBA WBC | | September 29, 1967 | March 4, 1968 | Emile Griffith | WBA WBC | | March 4, 1968 | November 7, 1970 | Nino Benvenuti | WBA WBC | | November 7, 1970 | February 9, 1974 |  Carlos Monzon | WBA WBC | - Monzon was stripped of the WBC championship for not facing his mandatory challenger, Rodrigo Valdez.
| | June 26, 1976 | July 30, 1977 | Carlos Monzon | WBA WBC | | May 22, 1978 | June 30, 1979 | Hugo Corro | WBA WBC | | June 30, 1979 | March 16, 1980 | Vito Antuofermo | WBA WBC | | March 16, 1980 | September 27, 1980 | Alan Minter | WBA WBC | | September 27, 1980 | June 6, 1987 | Marvin Hagler | 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. He lost the WBC belt after losing to Leonard.
| | September 29, 2001 | July 16, 2005 | Bernard Hopkins | WBA WBC IBF WBO | - Bernard Hopkins became the undisputed champion after defeating Felix 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, becoming the first man to ever hold all four titles simultaneously.
| | July 16, 2005 | December 14, 2006 | Jermain Taylor | 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
| [edit] Junior Middleweight [edit] Welterweight | Reign Began | Reign Ended | Champion | Recognition | | March 21, 1963 | June 8, 1963 |  Luis Manuel Rodriguez | WBA WBC | | June 8, 1963 | December 10, 1965 | Emile Griffith | WBA WBC | - Emile Griffith relinquished the title after moving to the middleweight division.
| | November 28, 1966 | April 18, 1969 | Curtis Cokes | WBA WBC | - Cokes reunited the titles after defeating Jean Josselin.
| | April 18, 1969 | December 3, 1970 |  Jose Napoles | WBA WBC | | December 3, 1970 | June 4, 1971 | Billy Backus | WBA WBC | | June 4, 1971 | May 1975 | Jose Napoles | WBA WBC | - Napoles gave up the WBA belt after rematching Armando Muniz.
| | September 16, 1981 | February 15, 1982 | Sugar Ray Leonard | 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 | 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 | 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 | 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 | 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.
| [edit] Junior Welterweight | Reign Began | Reign Ended | Champion | Recognition | | 1963-03-21 | 1963-06-15 | Roberto Cruz | WBA WBC | | 1963-06-15 | 1965-01-18 | Eddie Perkins | WBA WBC | | 1965-01-18 | 1966-04-29 |  Carlos Hernandez | WBA WBC | | 1966-04-29 | 1967-04-30 | Sandro Lopopolo | WBA WBC | | 1967-04-30 | 1967-11-16-Vacated |  Takeshi Fuji | 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 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.
| [edit] Lightweight | Reign Began | Reign Ended | Champion | Recognition | | April 7, 1963 | April 10, 1965 | Carlos Ortiz | WBA WBC The Ring | | April 10, 1965 | November 13, 1965 |  Ismael Laguna | WBA WBC The Ring | | November 13, 1965 | June 29, 1968 | Carlos Ortiz | WBA WBC The Ring | | June 29, 1968 | February 18, 1969 |  Carlos Cruz | WBA WBC The Ring | | February 18, 1969 | March 3, 1970 | Mando Ramos | WBA WBC The Ring | | March 3, 1970 | September 15, 1970 | Ismael Laguna | WBA WBC The Ring | - Laguna gave up the WBC title.
| | February 12, 1971 | June 25,1971 | Ken Buchanan | WBA WBC The Ring | - 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 Duran | WBA WBC The Ring | - 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 | WBA WBC IBF | - Whitaker, the unified IBF and WBC champion, won Juan Nazario's WBA belt becoming the undisputed champ . Whitaker relinquished all of the belts after moving to the junior welterweight division.
| | October 13, 2007 | March 8, 2008 | Juan Díaz | WBA IBF WBO | | March 8, 2008 | January 10, 2009 | Nate Campbell | WBA IBF WBO | - Campbell vacated his WBA lightweight title because of concerns regarding sanctioning fees and proposed mandatory defenses.
| [edit] 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 | WBA WBC | | December 14, 1967 | January 19, 1969 | Hiroshi Kobayashi | WBA WBC | - Kobayashi is stripped of his WBA title for failing to fight Rene Barrientos, despite a written agreement.
| [edit] Featherweight | Reign Began | Reign Ended | Champion | Recognition | | March 21, 1963 | September 26, 1964 | Sugar Ramos | WBA WBC | | September 26, 1964 | October 14, 1967 | Vicente Saldivar | WBA WBC | - Saldivar retired after his title defense against Howard Winstone.
| [edit] Super Bantamweight none [edit] Bantamweight | Reign Began | Reign Ended | Champion | Recognition | | March 19, 1972 | July 29, 1972 | Rafael Herrera | 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.
| [edit] Super Flyweight | Reign Began | Reign Ended | Champion | Recognition | | July 5, 1984 | March 30, 1986 | Jiro Watanabe | 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.
| | October 1, 2008 | |  Vic Darchinyan | WBA WBC IBF | - Darchinyan beat Cristian Mijares to unify his IBF title with Mijares' WBA and WBC belts and become the division's first undisputed champion for over 22 years.
| [edit] Flyweight none [edit] Junior Flyweight none [edit] Minimumweight | Reign Began | Reign Ended | Champion | Recognition | | November 18, 1998 | October 2, 1999 | Ricardo Lopez | WBC WBO WBA | [edit] External links | World boxing champions | | | Champions by weight class | | | | Champions by organization | | | | Champions by different weight class | | | | Terms | | | |
