';
| Fighter | Nickname | Height | Weight | Association | |
| Artis Lyles | "Tha Kid" | 5'6" (1.68 m) |
135 lbs (61.23 kg) |
Xtreme Couture | |
| Austin Burns | 0'0" (0 m) |
125 lbs (56.7 kg) |
Eric Nolan's Xtreme Training Center | ||
| Austin Clayton | "The Ace" | 6'4" (1.93 m) |
185 lbs (83.91 kg) |
Xtreme Couture | |
| Ava Knight | "Lady of Boxing" | 5'4" (1.63 m) |
115 lbs (52.16 kg) |
Xtreme Couture | |
| Axel Osuna | "El Charro" | 5'6" (1.68 m) |
125 lbs (56.7 kg) |
Cobrinha BJJ / Xtreme Couture | |
| Bautista Cardozo | "El Picante" | 0'0" (0 m) |
145 lbs (65.77 kg) |
Combate Xtreme Academy | |
| Benjamin Smith | 5'11" (1.8 m) |
170 lbs (77.11 kg) |
Xtreme Couture | ||
| Bi Nguyen | "Killer Bee" | 4'11" (1.5 m) |
105 lbs (47.63 kg) |
Xtreme Couture | |
| Biaggio Ali Walsh | 5'10" (1.78 m) |
155 lbs (70.31 kg) |
Xtreme Couture | ||
| Bilal Nasari | 5'11" (1.8 m) |
145 lbs (65.77 kg) |
Xtreme Couture Toronto | ||
| Boston Salmon | "Boom Boom" | 5'9" (1.75 m) |
145 lbs (65.77 kg) |
PHD Athletics / Xtreme Couture | |
| Brad Tavares | 5'11" (1.8 m) |
185 lbs (83.91 kg) |
Xtreme Couture / MMA Development | ||
| Braden Aupuni Pagaoa | "Puni" | 5'6" (1.68 m) |
126 lbs (57.15 kg) |
Xtreme Couture | |
| Brenson Hansen | 5'8" (1.73 m) |
145 lbs (65.77 kg) |
Xtreme Couture / MMA Development | ||
| Briant Ezequiel Ibarra | "El Esclavo" | 5'5" (1.65 m) |
135 lbs (61.23 kg) |
Combate Xtreme Academy | |
| Brooke Guidry | 0'0" (0 m) |
0 lbs (0 kg) |
Xtreme Couture | ||
| Bruno Torres | 0'0" (0 m) |
0 lbs (0 kg) |
Xtreme Fitness | ||
| Bruno Silva | 0'0" (0 m) |
125 lbs (56.7 kg) |
Xtreme Fight | ||
| Bryan Caraway | "Kid Lightning" | 5'9" (1.75 m) |
135 lbs (61.23 kg) |
Xtreme Couture | |
| Bryce Harley | "WuTang" | 5'5" (1.65 m) |
115 lbs (52.16 kg) |
Xtreme Couture | |