Heavyweight
WBC: Deontay Wilder
WBA: Anthony Joshua
IBF: Anthony Joshua
WBO: Anthony Joshua
Cruiserweight
WBC: Vacant
WBA: Arsen Goulamirian
IBF: Yunier Dorticos
WBO: Mairis Briedis
Light-heavyweight
WBC: Artur Beterbiev
WBA: Dmitry Bivol
IBF: Artur Beterbiev
WBO: Canelo Alvarez
Super-middleweight
WBC: Anthony Dirrell
WBA: Callum Smith
IBF: Caleb Plant
WBO: Billy Joe Saunders
Middleweight
WBC: Jermall Charlo
WBA: Canelo Alvarez
IBF: Gennady Golovkin
WBO: Demetrius Andrade
Light-middleweight
WBC: Tony Harrison
WBA: Julian Williams
IBF: Julian Williams
WBO: Jaime Munguia
Welterweight
WBC: Errol Spence Jnr
WBA: Manny Pacquiao
IBF: Errol Spence Jnr
WBO: Terence Crawford
Light-welterweight
WBC: José Ramírez
WBA: Josh Taylor
IBF: Josh Taylor
WBO: José Ramirez
Lightweight
WBC: Devin Haney
WBA: Vasyl Lomachenko
IBF: Richard Commey
WBO: Vasyl Lomachenko
Super-featherweight
WBC: Miguel Berchelt
WBA: Andrew Cancio
IBF: Tevin Farmer
WBO: Jamel Herring
Featherweight
WBC: Gary Russell Jnr
WBA: Leo Santa Cruz
IBF: Josh Warrington
WBO: Shakur Stevenson
Super-bantamweight
WBC: Rey Vargas
WBA: Daniel Roman
IBF: Daniel Roman
WBO: Emanuel Navarrete
Bantamweight
WBC: Nordine Oubaali
WBA: Naoya Inoue
IBF: Naoya Inoue
WBO: John Riel Casemiro
Super-flyweight
WBC: Juan Francisco Estrada
WBA: Khalid Yafai
IBF: Jerwin Ancajas
WBO: Kazuto Ioka
Flyweight
WBC: Vacant
WBA: Artem Dalakian
IBF: Moruti Mthalane
WBO: Kosei Tanaka
Light-flyweight
WBC: Ken Shiro
WBA: Hiroto Kyoguchi
IBF: Felix Alvarado
WBO: Elwin Soto
Strawweight
WBC: Wanheng Menayothin
WBA: Thammanoon Niyomtrong
IBF: Pedro Taduran
WBO: Wilfredo Mendez
