Undisputed championship (boxing)
In boxing, the undisputed champion of a weight class is the boxer who simultaneously holds world titles from all major organizations[1][2] recognized by each other and the International Boxing Hall of Fame. There are currently four major sanctioning bodies: WBA, WBC, WBO, and IBF. There were many undisputed champions before the number of major sanctioning bodies recognizing each other increased to four in 2007, but there have been only 19 boxers (9 male and 10 female) to hold all four titles simultaneously.
Disputed undisputed champions[edit]
If a fighter wins all the titles but is stripped by one organization of its title, he may continue to be considered the undisputed champion.
Roy Jones Jr. was called the undisputed light heavyweight champion after unifying the WBA, WBC, and IBF titles in June 1999.[24] He was later awarded The Ring championship title. However, two of those titles (WBA and IBF) had been stripped from Dariusz Michalczewski, who had unified them with his WBO title by beating the lineal champion Virgil Hill in June 1997 and subsequently remained unbeaten, defending his remaining title, until his first loss in October 2003.[25] Speaking of Jones' claim to being undisputed champion, one writer opined that the distinction "could just as easily belong to current WBO titleist Dariusz Michalczewski."[26]
Five months after Lennox Lewis unified the WBA, WBC, and IBF titles to become the undisputed heavyweight champion, a U.S. Federal Judge ruled that Lewis would be stripped by the WBA of their world championship belt for fighting Michael Grant instead of the association's #1 contender, John Ruiz. The fight took place on April 29, 2000. Lewis remained a unified world champion until April 22, 2001, when he was defeated by Hasim Rahman. He regained the WBC and IBF titles following victory over Rahman seven months later in a rematch. His reign as a unified world champion ended in September 2002, when he rejected the chance to fight the IBF's #1 contender, Chris Byrd, and was therefore stripped by the organisation of their belt. He retained his WBC title until his retirement in February 2004.
Jermain Taylor won all four middleweight titles from Bernard Hopkins in July 2005, but was stripped of the IBF title for agreeing to a rematch rather than fighting Sam Soliman.[27] Nevertheless, he was still described as "undisputed champion" by some reports.[28][29]
After Joe Calzaghe's super middleweight victory over Mikkel Kessler in November 2007, he was frequently described as "undisputed champion".[30][31][32][33] Others disputed this, because although he held the WBA, WBC, and WBO titles, he had vacated his IBF title in November 2006 for choosing to face Peter Manfredo Jr. as his next opponent instead of mandatory challenger Robert Stieglitz.[34][35][36]
Teófimo López won the WBC Franchise lightweight title in addition to the WBA (Super), IBF, WBO and The Ring magazine titles after beating Vasiliy Lomachenko in October 2020, and was subsequently reported by some media outlets to be the youngest four-belt undisputed champion of all-time at the age of 23 years old;[37] however, the WBC Franchise title is not universally recognized as a major world title.[38][39]
Tournaments have been arranged to unify the titles in a weight class.