Mistrzowie
MMA
Strawweight (słomkowa)- 115 funtów; 52.16 kg; skrót SW
Świat:
- UFC champion – b/d
- Bellator champion – b/d
- PFL champion – b/d
- ONE Championship* champion – Joshua Pacio
- ACA champion – b/d
Polska:
- KSW champion – b/d
- FEN champion – b/d
Flyweight (musza)- 125 funtów; 56.69 kg; skrót: FLW
Świat:
- UFC champion – Brandon Moreno
- Bellator champion – b/d
- PFL champion – b/d
- ONE Championship champion – Adriano Moraes
- ACA champion – Azamat Kerefov
Polska:
- KSW champion – b/d
- FEN champion – b/d
Bantamweight (kogucia)- 135 funtów; 61.29 kg; skrót: BW
Świat:
- UFC champion – Aljamain Sterling
- Bellator champion – Sergio Pettis
- PFL champion – b/d
- ONE Championship champion – Bibiano Fernandes
- ACA champion – Magomed Bibulatov
Polska:
- KSW champion – Sebastian Przybysz
- FEN champion – Frans Mlambo
Featherweight (piórkowa)- 145 funtów; 65.83 kg; skrót: FW
Świat:
- UFC champion – Alexander Volkanovski
- Bellator champion – AJ McKee
- PFL champion – Lance Palmer
- ONE Championship champion – Tanh Le
- ACA champion – Magomedrasul Khasbulaev
Polska:
- KSW champion – Daniel Torres
- FEN champion – Daniel Rutkowski
Lightweight (lekka)- 155 funtów; 70.37 kg; skrót: LW
Świat:
- UFC champion – Charles Oliveira
- Bellator champion – Patricio “Pitbull” Freire
- PFL champion – Natan Schulte
- ONE Championship champion – Christian Lee
- ACA champion – Abdul-Aziz Abdulvakhabov
Polska:
- KSW champion – Marian Ziółkowski
- FEN champion – Mateusz Rębecki
Welterweight (półśrednia)- 170 funtów; 77.18 kg; skrót: WW
Świat:
- UFC champion – Kamaru Usman
- Bellator champion – Yaroslav Amosov
- PFL champion – Ray Cooper III
- ONE Championship champion – Kiamrian Abbasov
- ACA champion – Abubakar Vagaev
Polska:
- KSW champion – Roberto Soldic
- FEN champion – Robert Bryczek
Middleweight (średnia)- 185 funtów; 84 kg; skrót: MW
Świat:
- UFC champion –Israel Adesanya
- Bellator champion – Gegard Mousasi
- PFL champion – Louis Taylor
- ONE Championship champion – Reinier de Ridder
- ACA champion – Salamu Abdurakhmanov
Polska:
- KSW champion – Mamed Khalidov
- FEN champion – b/d
Light Heavyweight (półciężka)- 205 funtów; 93 kg, skrót: LHW
Świat:
- UFC champion – Jan Błachowicz
- Bellator champion – Vadim Nemkov
- PFL champion – Emiliano Sordi
- ONE Championship champion – Reinier de Ridder
- ACA champion – Muslim Magomedov
Polska:
- KSW champion – Tomasz Narkun
- FEN champion – Marcin Wójcik
Heavyweight (ciężka)- 265 funtów; 120.31 kg; skrót: HW
Świat:
- UFC champion – Francis Ngannou
- interim champion – Ciryl Gane
- Bellator champion – Ryan Bader
- interim champion – Valentin Moldavsky
- PFL champion – Ali Isaev
- ONE Championship champion – Arjan Bhullar
- ACA champion – Tony Johnson
Polska:
- KSW champion – Philip De Fries
- FEN champion – Oli Thompson
WMMA
Atomweight (atomowa)- 105 funtów; 47.62 kg; skrót AW
Świat:
- UFC champion – b/d
- Bellator champion – b/d
- PFL champion – b/d
- ONE Championship champion – Angela Lee
- Invicta FC – Alesha Zappitella
Polska:
- KSW champion – b/d
- FEN champion – b/d
Strawweight (słomkowa)- 115 funtów; 52.16 kg; skrót SW
Świat:
- UFC champion – Rose Namajunas
- Bellator champion – b/d
- PFL champion – b/d
- ONE Championship champion – Jingnan Xiong
- Invicta FC – Emily Ducote
Polska:
- KSW champion – b/d
- FEN champion – b/d
Flyweight (musza)- 125 funtów; 56.69 kg; skrót: FLW
Świat:
- UFC champion – Valentina Shevchenko
- Bellator champion – Juliana Velasquez
- PFL champion – b/d
- ONE Championship champion – b/d
- Invicta FC – Karina Rodriguez
Polska:
- KSW champion – b/d
- FEN champion – b/d
Bantamweight (kogucia)- 135 funtów; 61.29 kg; skrót: BW
Świat:
- UFC champion – Amanda Nunes
- Bellator champion – b/d
- PFL champion – b/d
- ONE Championship champion – b/d
- Invicta FC – Taneisha Tennant
Polska:
- KSW champion – b/d
- FEN champion – b/d
Featherweight (piórkowa)- 145 funtów; 65.83 kg; skrót: FW
Świat:
- UFC champion – Amanda Nunes
- Bellator champion – Cris Cyborg
- PFL champion – b/d
- ONE Championship champion – b/d
- Invicta FC – b/d
Polska:
- KSW champion – b/d
- FEN champion – b/d
Lightweight (lekka)- 155 funtów; 70.37 kg; skrót: LW
Świat:
- UFC champion – b/d
- Bellator champion – b/d
- PFL champion – Kayla Harrison
- ONE Championship champion – b/d
- Invicta FC – b/d
Polska:
- KSW champion – b/d
- FEN champion – b/d
*W przypadku kategorii ONE Championship ważenie odbywa się w dniu walki w związku z czym limity wagowe są przesunięte – kategoria lekka to 77 kg zamiast 70 kg, kategoria półśrednia to 84 kg zamiast 77 kg itd.