';
| Fighter | Nickname | Height | Weight | Association | |
| Gary MacDonald | "Straight Savage" | 5'10" (1.78 m) |
170 lbs (77.11 kg) |
Core MMA | |
| Hale Vaa'sa | 0'0" (0 m) |
211 lbs (95.71 kg) |
Southside MMA / Core Strength Fitness | ||
| Helio Teixeira | 0'0" (0 m) |
190 lbs (86.18 kg) |
Core Fight | ||
| Hey Urita | 0'0" (0 m) |
155 lbs (70.31 kg) |
Core Quest Kushiro | ||
| Hideki Kishimoto | 5'8" (1.73 m) |
145 lbs (65.77 kg) |
Ground Core | ||
| Hidetaka Takeuchi | 0'0" (0 m) |
170 lbs (77.11 kg) |
Core Quest | ||
| Hiroyuki Nozawa | 5'8" (1.73 m) |
155 lbs (70.31 kg) |
Core Kamata | ||
| Ittetsu Ueda | 0'0" (0 m) |
125 lbs (56.7 kg) |
Ground Core | ||
| Jack Gibson | 0'0" (0 m) |
0 lbs (0 kg) |
Core MMA | ||
| Jason Calle | 5'8" (1.73 m) |
155 lbs (70.31 kg) |
Core Fight Academy | ||
| Jayson Awa | 0'0" (0 m) |
194 lbs (88 kg) |
Core MMA | ||
| Jeremy Blackmon | 0'0" (0 m) |
125 lbs (56.7 kg) |
Iron Core Gym | ||
| John Proctor | 0'0" (0 m) |
135 lbs (61.23 kg) |
Pro-Core HQ | ||
| Josh Rodrigues | "Rumbuks" | 0'0" (0 m) |
155 lbs (70.31 kg) |
Core MMA | |
| Juan Parra | 5'8" (1.73 m) |
141 lbs (63.96 kg) |
Iron Core Athletics | ||
| Julio Alves Feitosa Jr. | "Junior" | 0'0" (0 m) |
185 lbs (83.91 kg) |
Core Training Inhumas | |
| Julius Poananga | 0'0" (0 m) |
180 lbs (81.65 kg) |
Core MMA | ||
| Kaiji Hirano | 5'5" (1.65 m) |
137 lbs (62.14 kg) |
Core | ||
| Katsuhisa Fujii | "Shamoji" | 6'0" (1.83 m) |
217 lbs (98.43 kg) |
Core | |
| Kazutoshi Shibuya | 0'0" (0 m) |
135 lbs (61.23 kg) |
Core Quest Kushiro | ||