';
| Fighter | Nickname | Height | Weight | Association | |
| Aaron Westcott | 0'0" (0 m) |
205 lbs (92.99 kg) |
Big Will's Gym | ||
| Adam Speechly | "The Prodigy" | 5'9" (1.75 m) |
170 lbs (77.11 kg) |
Smith's Boxing Gym / Attila's Fight Club | |
| Aden Zarco | "Tiger" | 5'8" (1.73 m) |
139 lbs (63.05 kg) |
Maic's Gym / Benibe MMA | |
| Adrian Guzman | 0'0" (0 m) |
155 lbs (70.31 kg) |
Ralph's House Gym | ||
| Ahmad Kakar | 0'0" (0 m) |
124 lbs (56.25 kg) |
Grant's MMA Gym | ||
| Alan Fenandes | "The Bull" | 5'10" (1.78 m) |
172 lbs (78.02 kg) |
Tiger's Gym and Fight Club | |
| Alejandro Dorado | 0'0" (0 m) |
0 lbs (0 kg) |
Tiger's Gym | ||
| Alex Reher | 0'0" (0 m) |
170 lbs (77.11 kg) |
Downing's Gym | ||
| Alex Huezo | 0'0" (0 m) |
145 lbs (65.77 kg) |
Najarro's Gym | ||
| Alexander Contreras | 5'7" (1.7 m) |
125 lbs (56.7 kg) |
Gold's Gym Esteli | ||
| Alexis Segura | "El Duro" | 0'0" (0 m) |
170 lbs (77.11 kg) |
Najarro's Gym | |
| Alfonso Rodriguez | 5'8" (1.73 m) |
125 lbs (56.7 kg) |
Gold's Gym Esteli | ||
| Ali Farkhar | 0'0" (0 m) |
185 lbs (83.91 kg) |
Jeremy Horn's Elite Performance Gym | ||
| Alison Nicole Ubeda | 0'0" (0 m) |
115 lbs (52.16 kg) |
Gold's Gym Esteli | ||
| Allard Kootes | 0'0" (0 m) |
0 lbs (0 kg) |
Mike's Gym | ||
| Alvaro Herrera | 5'9" (1.75 m) |
135 lbs (61.23 kg) |
Gold's Gym Esteli | ||
| Amariaunah Vera | "Chipmonk" | 5'2" (1.57 m) |
110 lbs (49.9 kg) |
Bizzarro’s Boxing Gym | |
| AmberLynn Orr | "ALO" | 5'7" (1.7 m) |
135 lbs (61.23 kg) |
Team Torment / Fisher's Bang Gym | |
| Amir Krul | 0'0" (0 m) |
0 lbs (0 kg) |
Mike's Gym | ||
| Anastasios Chatzigeorgiadis | 0'0" (0 m) |
147 lbs (66.68 kg) |
Kong's Gym Stuttgart | ||