Who holds each of the belts in across all the weight classes in boxing?
There are 17 weight classes in professional boxing, and five major belts for each of the divisions: The WBA (World Boxing Association), WBC (World Boxing Council), IBF (International Boxing Federation), WBO (World Boxing Organization), IBO (International Boxing Organization), as well as The Ring Magazine title, which is awarded by American boxing magazine, The Ring, since 1922.
The mixture of belts and champions means that there is only a rare occasion when a class can be fully unified to produce an undisputed champion, with no division currently ruled by a single fighter.
Boxers often fight across weight classes in order to maximise their chances of success, and Manny Pacquiao is currently the only fighter to have won titles in eight divisions.
Here is every champion in each of boxing's weight class:
HEAVYWEIGHT
WBC: Tyson Fury
WBA: Oleksandr Usyk
IBF: Oleksandr Usyk
WBO: Oleksandr Usyk
IBO: Oleksandr Usyk
The Ring: Tyson Fury
BRIDGERWEIGHT
WBC: Oscar Rivas
CRUISERWEIGHT
WBA: Arsen Goulamirian
WBC: Ilunga Makabu
IBF: Mairis Briedis
WBO: Lawrence Okolie
IBO: Jack Massey
The Ring: Mairis Briedis
LIGHT HEAVYWEIGHT
WBA: Dimitry Bivol
WBC: Artur Beterbiev
IBF: Artur Beterbiev
WBO: Joe Smith Jr.
IBO: Vacant
The Ring: Vacant
SUPER MIDDLEWEIGHT
WBA: Canelo Alvarez
WBC: Canelo Alvarez
IBF: Canelo Alvarez
WBO: Canelo Alvarez
IBO: Carlos Gongora
The Ring: Canelo Alvarez
MIDDLEWEIGHT
WBA: Ryota Murata
WBC: Jermall Charlo
IBF: Gennady Golovkin
WBO: Demetrius Andrade
IBO: Gennady Golovkin
The Ring: Vacant
SUPER WELTERWEIGHT
WBA: Jermell Charlo
WBC: Jermell Charlo
IBF: Jermell Charlo
WBO: Brian Castano
IBO: Vacant
The Ring: Jermell Charlo
WELTERWEIGHT
WBA: Yordenis Ugas
WBC: Errol Spence Jr.
IBF: Errol Spence Jr.
WBO: Terence Crawford
IBO: Vacant
The Ring: Vacant
SUPER LIGHTWEIGHT
WBA: Josh Taylor
WBC: Josh Taylor
IBF: Josh Taylor
WBO: Josh Taylor
IBO: Vacant
The Ring: Josh Taylor
LIGHTWEIGHT
WBA: George Kambosos Jr.
WBC: Devin Haney
IBF: George Kambosos Jr.
WBO: George Kambosos Jr.
IBO: Maxi Hughes
The Ring: George Kambosos Jr.
SUPER FEATHERWEIGHT
WBA: Roger Gutierrez
WBC: Oscar Valdez
IBF: Kenichi Ogawa
WBO: Shakur Stevenson
IBO: Michael Magnesi
The Ring: Vacant
FEATHERWEIGHT
WBA: Leo Santa Cruz
WBC: Gary Russell Jr.
IBF: Kiko Martinez
WBO: Emanuel Navarrete
IBO: Vacant
The Ring: Vacant
SUPER BANTAMWEIGHT
WBA: Murodjon Akhmadaliev
WBC: Stephen Fulton
IBF: Murodjon Akhmadaliev
WBO: Stephen Fulton
IBO: Ludumo Lamati
The Ring: Vacant
BANTAMWEIGHT
WBA: Naoya Inoue
WBC: Nonito Donaire
IBF: Naoya Inoue
WBO: Johnriel Casimero
IBO: Michell Banquez
The Ring: Naoya Inoue
SUPER FLYWEIGHT
WBA: Juan Francisco Estrada
WBC: Vacant
IBF: Jerwin Ancajas
WBO: Kazuto Ioka
IBO: Vacant
The Ring: Juan Francisco Estrada
FLYWEIGHT
WBA: Artem Dalakian
WBC: Julio Cesar Martinez
IBF: Sunny Edwards
WBO: Junto Nakatani
IBO: Vacant
The Ring: Vacant
LIGHT FLYWEIGHT
WBA: Hiroto Kyoguchi
WBC: Masamichi Yabuki
IBF: Felix Alvarado
WBO: Jonathan Gonzalez
IBO: Vacant
The Ring: Hiroto Kyoguchi
MINIMUMWEIGHT
WBA: Thammanoon Niyomtrong
WBC: Panya Pradabsri
IBF: Rene Mark Cuarto
WBO: Wilfredo Mendez
IBO: Ayanda Ndulani
The Ring: Vacant
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