';
| Fighter | Nickname | Height | Weight | Association | |
| Georges Sahyouni | "The Bullet" | 5'6" (1.68 m) |
135 lbs (61.23 kg) |
Knockout Academy | |
| Gian Geronimo | 0'0" (0 m) |
169 lbs (76.66 kg) |
Knockout Training Center | ||
| Gonzalo Collazo | 0'0" (0 m) |
165 lbs (74.84 kg) |
Montevideo Knockout | ||
| Gopal Sharma | 5'2" (1.57 m) |
125 lbs (56.7 kg) |
Knockout Fight Club | ||
| Haneef Haneef | 5'7" (1.7 m) |
145 lbs (65.77 kg) |
Knockout MMA | ||
| Harmeet Singh | 5'8" (1.73 m) |
155 lbs (70.31 kg) |
Knockout Gym | ||
| Hashmatullah Shaker | 5'6" (1.68 m) |
120 lbs (54.43 kg) |
Knockout Free Fight Academy | ||
| Hector Lazo | 0'0" (0 m) |
0 lbs (0 kg) |
Knockout Factory | ||
| Henry Kassardajian | 0'0" (0 m) |
165 lbs (74.84 kg) |
Montevideo Knockout | ||
| Howard Davis | 0'0" (0 m) |
265 lbs (120.2 kg) |
Knockout Gym | ||
| Jad Akach | 5'9" (1.75 m) |
145 lbs (65.77 kg) |
Knockout Academy | ||
| James Ainsworth | "Death Row" | 0'0" (0 m) |
205 lbs (92.99 kg) |
Knockout Gym | |
| Jamie Jones | 0'0" (0 m) |
135 lbs (61.23 kg) |
Knockout Gym | ||
| Jason Norman | "Black Mamba" | 0'0" (0 m) |
155 lbs (70.31 kg) |
Knockout Gym | |
| Jay Estrada | "El Terrible" | 5'7" (1.7 m) |
170 lbs (77.11 kg) |
Southside Knockout Training | |
| Jena Karam | 5'6" (1.68 m) |
115 lbs (52.16 kg) |
Knockout Academy | ||
| Jesus Cedillo | 0'0" (0 m) |
165 lbs (74.84 kg) |
Knockout Training Center | ||
| Jesus Castro | 0'0" (0 m) |
145 lbs (65.77 kg) |
Knockout Training Center | ||
| Jesus Sevilla | 0'0" (0 m) |
145 lbs (65.77 kg) |
Team Combat Club Knockout | ||
| Jimena Osorio | 0'0" (0 m) |
115 lbs (52.16 kg) |
Montevideo Knockout | ||