| Fighter | Nickname | Height | Weight | Association | |
 |
Amine Malouche | 6'0" (1.83 m) |
170 lbs (77.11 kg) |
K-One Fitness | |
|
Amirshoh Akhrorzoda | 5'8" (1.73 m) |
145 lbs (65.77 kg) |
Triple One Gym | |
|
Anastacio Barrientos | 0'0" (0 m) |
170 lbs (77.11 kg) |
One Nation | |
|
Anderson Silva Souza | 5'7" (1.7 m) |
135 lbs (61.23 kg) |
One Jiu-Jitsu / Team Sergio | |
|
Andreas Spang | "Sweet Swede" | 6'1" (1.85 m) |
224 lbs (101.6 kg) |
J-Sect MMA / One Kick's Gym |
|
Andres Oviedo | 0'0" (0 m) |
145 lbs (65.77 kg) |
One Nation MMA | |
|
Andrew Borcher | 5'11" (1.8 m) |
155 lbs (70.31 kg) |
One on One Fight Team | |
|
Andriyan Grechkosiy | 0'0" (0 m) |
145 lbs (65.77 kg) |
One Team | |
|
Angie Reinhardt | "Domino" | 5'5" (1.65 m) |
130 lbs (58.97 kg) |
Power of One MMA |
|
Antares Simensis | "Krash Coyote" | 0'0" (0 m) |
185 lbs (83.91 kg) |
One Training Center |
|
Anthony Njokuani | "The Assassin" | 6'0" (1.83 m) |
170 lbs (77.11 kg) |
Janjira Muay Thai / One Kick's Gym / Sergio Penha BJJ |
|
Anthony Castrejon | "Pretty Boy" | 5'6" (1.68 m) |
135 lbs (61.23 kg) |
One Kick's Gym |
|
Anton Prusakov | 6'0" (1.83 m) |
234 lbs (106.14 kg) |
Hooligan Number One Gym | |
|
Anwar Abozaid | 6'1" (1.85 m) |
185 lbs (83.91 kg) |
The One | |
|
Arjay Ortega Bongala | "Little Bones" | 0'0" (0 m) |
135 lbs (61.23 kg) |
The Alpha One |
|
Atul Kushwaha | 5'7" (1.7 m) |
155 lbs (70.31 kg) |
One Punch Club | |
|
Barney Warner | 0'0" (0 m) |
145 lbs (65.77 kg) |
One Martial Arts | |
|
Benjamin Sivadon | 0'0" (0 m) |
135 lbs (61.23 kg) |
Force of One | |
|
Bill Peck | 0'0" (0 m) |
170 lbs (77.11 kg) |
One Nation Fight Team | |
|
Brad Shatara | 0'0" (0 m) |
190 lbs (86.18 kg) |
Power of One | |
