Heavyweight
- WBA: Anthony Joshua
- WBC: Deontay Wilder
- IBF: Anthony Joshua
- WBO: Anthony Joshua
Cruiserweight
- WBA: Vacant
- WBC: Oleksandr Usyk
- IBF: Oleksandr Usyk
- WBO: Oleksandr Usyk
Light-Heavyweight
- WBA: Dmitry Bivol
- WBC: Oleksandr Gvozdyk
- IBF: Artur Beterbiev
- WBO: Sergey Kovalev
Super-Middleweight
- WBA: Callum Smith
- WBC: Anthony Dirrell
- IBF: Caleb Plant
- WBO: Vacant
Middleweight
- WBA: Canelo Alvarez
- WBC: Canelo Alvarez
- IBF: Canelo Alvarez
- WBO: Demetrius Andrade
Super-Welterweight
- WBA: Jarrett Hurd
- WBC: Tony Harrison
- IBF: Jarrett Hurd
- WBO: Jaime Munguia
Welterweight
- WBA: Keith Thurman
- WBC: Shawn Porter
- IBF: Errol Spence
- WBO: Terence Crawford
Super-Lightweight
- WBA: Regis Prograis
- WBC: Jose Ramirez
- IBF: Ivan Baranchyk
- WBO: Maurice Hooker
Lightweight
- WBA: Vasyl Lomachenko
- WBC: Vacant
- IBF: Richard Commey
- WBO: Vasyl Lomachenko
Super-Featherweight
- WBA: Gervonta Davis
- WBC: Miguel Berchelt
- IBF: Tevin Farmer
- WBO: Masayuki Ito
Featherweight
- WBA: Leo Santa Cruz
- WBC: Gary Russell Jr
- IBF: Josh Warrington
- WBO: Oscar Valdez
Super-Bantamweight
- WBA: Daniel Roman
- WBC: Rey Vargas
- IBF: Daniel Roman
- WBO: Emanuel Navarrete
Bantamweight
- WBA: Nonito Donaire
- WBC: Nordine Oubaali
- IBF: Emmanuel Rodriguez
- WBO: Zolani Tete
Super-Flyweight
- WBA: Kal Yafai
- WBC: Juan Estrada
- IBF: Jerwin Ancajas
- WBO: Vacant
Flyweight
- WBA: Artem Dalakian
- WBC: Charlie Edwards
- IBF: Moruti Mthalane
- WBO: Kosei Tanaka
Light-Flyweight
- WBA: Hiroto Kyoguchi
- WBC: Ken Shiro
- IBF: Felix Alvarado
- WBO: Angel Acosta
Minimumweight
- WBA: Knockout CP Freshmart
- WBC: Wanheng Menayothin
- IBF: DeeJay Kriel
- WBO: Vic Saludar
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