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1
- Jon Jones
- "Bones"
- 27-1-0, 1 NC
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Title wins: 15;
Weight division(s) as champion: Light Heavyweight, Heavyweight.
Relevant wins: Shogun Rua, Rashad Evans, Rampage Jackson, Lyoto Machida, Daniel Cormier, Glover Teixeira, Alexander Gustafsson (2x), Cyril Gane.
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2
- Georges St-Pierre
- "Rush"
- 26-2-0
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Title wins: 13;
Weight division(s) as champion: Welterweight, Middleweight.
Relevant wins: Matt Hughes (2x), Matt Serra, BJ Penn (2x), Carlos Condit, Jake Shields, Jon Fitch, Sean Sherk, Thiago Alves, Johnny Hendricks, Michael Bisping.
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3
- Demetrious Johnson
- "Mighty Mouse"
- 25-4-1
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Title wins: 12;
Weight division(s) as champion: Flyweight.
Relevant wins: Joseph Benavidez (2x), John Dodson (2x), Ray Borg, Kyoji Horiguchi, Henry Cejudo.
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4
- Anderson Silva
- "The Spider"
- 34-11-0, 1 NC
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Title wins: 11;
Weight division(s) as champion: Middleweight.
Relevant wins: Rich Franklin (2x), Chael Sonnen (2x), Demian Maia, Forrest Griffin, Dan Henderson, Vitor Belfort, Yushin Okami, Chris Leben.
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5
- Matt Hughes
- 45-9-0
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Title wins: 9;
Weight division(s) as champion: Welterweight.
Relevant wins: Carlos Newton (2x), Frank Trigg (2x), Georges St. Pierre, Royce Gracie, BJ Penn.
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6
- Randy Couture
- "The Natural"
- 19-11-0
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Title wins: 9;
Weight division(s) as champion: Light Heavyweight (2x), Heavyweight (3x).
Relevant wins: Chuck Liddell, Vitor Belfort, Tim Sylvia, Gabriel Gonzaga, Tito Ortiz.
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7
- José Aldo
- "Junior"
- 32-8-0
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Title wins: 8;
Weight division(s) as champion: Featherweight (2x).
Relevant wins: Mark Hominick, Chad Mendes (2x), Frankie Edgar (2x), Chan Sung Jung, Jeremy Stephens.
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8
- Israel Adesanya
- "The Last Stylebender"
- 24-3-0
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Title wins: 8;
Weight division(s) as champion: Middleweight (2x).
Relevant wins: Robert Whittaker (2x), Yoel Romero, Kelvin Gastelum, Marvin Vettori (2x), Alex Pereira.
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9
- Stipe Miocic
- 20-4-0
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Title wins: 6;
Weight division(s) as champion: Heavyweight (2x).
Relevant wins: Fabricio Werdum, Alistair Overeem, Junior dos Santos, Francis Ngannou, Daniel Cormier (2x).
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10
- Daniel Cormier
- "DC"
- 22-3-0, 1 NC
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Title wins: 6;
Weight division(s) as champion: Light Heavyweight, Heavyweight.
Relevant wins: Anthony Johnson (2x), Alexander Gustafsson, Stipe Miocic.
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11
- Alexander Volkanovski
- "The Great" | 26-4-0
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Title wins: 6;
Weight division(s) as champion: Featherweight.
Relevant wins: José Aldo, Max Holloway (3x), Brian Ortega, Chad Mendes, Chan Sung-Jung, Yair Rodriguez.
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12
- Kamaru Usman
- "Nigerian Nightmare" | 20-4-0
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Title wins: 6;
Weight division(s) as champion: Welterweight.
Relevant wins: Rafael dos Anjos, Demian Maia, Leon Edwards, Tyron Woodley, Colby Covington (2x), Jorge Masvidal (2x), Gilbert Burns.
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13
- Tito Ortiz
- "The Huntington Beach Bad Boy" | 21-12-1
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Title wins: 6;
Weight division(s) as champion: Light Heavyweight.
Relevant wins: Vitor Belfort, Wanderlei Silva, Evan Tanner, Ken Shamrock (3x).
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14
- BJ Penn
- "The Prodigy" | 16-14-2
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Title wins: 5;
Weight division(s) as champion: Lightweight, Welterweight.
Relevant wins: Matt Hughes (2x), Jens Pulver, Sean Sherk, Kenny Florian, Diego Sanchez.
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15
- Dominick Cruz
- "The Dominator" | 24-4-0
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16
- Chuck Liddell
- "The Iceman" | 21-9-0
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17
- T.J. Dillashaw
- 17-5-0
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18
- Max Holloway
- "Blessed" | 26-7-0
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19
- Cain Velasquez
- 14-3-0
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20
- Pat Miletich
- "The Croation Sensation" | 29-8-2
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21
- Frank Shamrock
- "The Legend" | 23-10-2
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22
- Tim Sylvia
- "The Maine-iac" | 31-10-0, 1 NC
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23
- Tom Aspinall
- 14-3-0
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24
- Alex Pereira
- "Poatan" | 10-2-0
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25
- Sean Strickland
- "Tarzan" | 28-6-0
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26
- Leon Edwards
- "Rocky" | 22-3-0, 1 NC
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27
- Islam Makhachev
- 25-1-0
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28
- Sean O'Malley
- "Suga" | 18-1-0, 1 NC
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29
- Alexandre Pantoja
- "The Cannibal" | 28-5-0
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30
- Francis NGannou
- "The Predator" | 17-3-0
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31
- Fabrício Werdum
- "Vai Cavalo" | 24-9-1, 1 NC
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32
- Junior dos Santos
- "Cigano" | 21-10-0
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33
- Brock Lesnar
- 5-3-0, 1 NC
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34
- Shane Carwin
- "The Engineer" | 12-2-0
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35
- Frank Mir
- 19-13-0
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36
- Antônio Rodrigo Nogueira
- "Minotauro" | 34-10-1, 1 NC
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37
- Andrei Arlovski
- "The Pitbull" | 34-23-0, 2 NC
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38
- Ricco Rodriguez
- "Suave" | 54-27-0, 1 NC
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39
- Josh Barnett
- "The Warmaster" | 35-8-0
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40
- Kevin Randleman
- "The Monster" | 17-16-0
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41
- Bas Rutten
- "El Guapo" | 28-4-1
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42
- Maurice Smith
- "Mo" | 14-17-0
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43
- Mark Coleman
- "The Hammer" | 16-10-0
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44
- Vitor Belfort
- "The Phenom" | 26-14-0, 1 NC
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45
- Quinton Jackson
- "Rampage" | 37-14-0
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46
- Forrest Griffin
- 19-7-0
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47
- Rashad Evans
- "Suga" | 20-8-1
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48
- Lyoto Machida
- "The Dragon" | 26-12-0
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49
- Maurício Rua
- "Shogun" | 27-14-1
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50
- Jan Błachowicz
- 29-10-1
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51
- Glover Teixeira
- 33-9-0
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52
- Jiří Procházka
- "BJP" | 30-4-1
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53
- Jamahal Hill
- "Sweet Dreams" | 12-2-0, 1 NC
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54
- Dave Menne
- "The Warrior" | 45-17-2
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55
- Murilo Bustamante
- "Bust A Move" | 15-8-1
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56
- Evan Tanner
- 32-8-0
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57
- Rich Franklin
- "Ace" | 29-7-0, 1 NC
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58
- Chris Weidman
- "The All-American" | 16-7-0
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59
- Luke Rockhold
- 16-6-0
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60
- Michael Bisping
- "The Count" | 30-9-0
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61
- Robert Whittaker
- "The Reaper" | 25-7-0
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62
- Carlos Newton
- "The Ronin" | 16-14-0
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63
- Matt Serra
- "The Terror" | 11-7-0
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64
- Carlos Condit
- "The Natural Born Killer" | 32-14-0
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65
- Johny Hendricks
- "Big Rig" | 18-8-0
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66
- Robbie Lawler
- "Ruthless" | 30-16-0, 1 NC
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67
- Tyron Woodley
- "The Chosen One" | 19-7-1
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68
- Colby Covington
- "Chaos" | 17-4-0
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69
- Jens Pulver
- "Little Evil" | 27-19-1
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70
- Sean Sherk
- "The Muscle Shark" | 35-4-1
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71
- Frankie Edgar
- "The Answer" | 24-11-1
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72
- Benson Henderson
- "Smooth" | 30-12-0
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73
- Anthony Pettis
- "Showtime" | 25-14-0
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74
- Rafael dos Anjos
- 32-16-0
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75
- Eddie Alvarez
- "The Underground King" | 30-8-0, 2 NC
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76
- Conor McGregor
- "The Notorious" | 22-6-0
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77
- Tony Ferguson
- "El Cucuy" | 25-10-0
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78
- Khabib Nurmagomedov
- "The Eagle" | 29-0-0
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79
- Dustin Poirier
- "The Diamond" | 30-8-0, 1 NC
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80
- Justin Gaethje
- "The Highlight" | 25-5-0
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81
- Charles Oliveira
- "do Bronx" | 34-10-0, 1 NC
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82
- Yair Rodriguez
- "El Pantera" | 18-5-0, 1 NC
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83
- Renan Barão
- "The Baron" | 34-10-0, 1 NC
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84
- Cody Garbrandt
- "No Love" | 14-6-0
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85
- Petr Yan
- "No Mercy" | 17-5-0
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86
- Aljamain Sterling
- "Funk Master" | 24-4-0
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87
- Henry Cejudo
- "Triple C" | 16-4-0
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88
- Deiveson Figueiredo
- "Deus da Guerra" | 23-3-1
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89
- Brandon Moreno
- "The Assassin Baby" | 21-8-2