';
| Fighter | Nickname | Height | Weight | Association | |
| Manuel Castro | "Monstruo" | 5'9" (1.75 m) |
205 lbs (92.99 kg) |
Leones MMA | |
| Marcos Verdin | "Punisher" | 5'8" (1.73 m) |
145 lbs (65.77 kg) |
Leones MMA | |
| Mario Chavez Ayala | 0'0" (0 m) |
125 lbs (56.7 kg) |
Leones Fit Gym | ||
| Mildred Flores | 5'3" (1.6 m) |
125 lbs (56.7 kg) |
Leones MMA | ||
| Nicolae Morosan | 6'3" (1.91 m) |
211 lbs (95.71 kg) |
Hic Sunt Leones | ||
| Oscar Eduardo Solano Mendoza | 0'0" (0 m) |
265 lbs (120.2 kg) |
Leones Fit Gym | ||
| Rafael Godoy | "El Papi" | 0'0" (0 m) |
205 lbs (92.99 kg) |
Leones Mirmidones | |
| Rafael Dias | 0'0" (0 m) |
121 lbs (54.88 kg) |
Leones Training Center | ||
| Ramon Pisciotta | "Bonecrusher" | 6'4" (1.93 m) |
235 lbs (106.59 kg) |
Hic Sunt Leones | |
| Raziel Cano Mejia | 0'0" (0 m) |
115 lbs (52.16 kg) |
Leones Mirmidones | ||
| Ruben Aldama | 5'7" (1.7 m) |
135 lbs (61.23 kg) |
Leones MMA | ||
| Sergio Moreno | 5'7" (1.7 m) |
170 lbs (77.11 kg) |
Leones Mirmidones | ||
| Wellington Silva | 0'0" (0 m) |
125 lbs (56.7 kg) |
Leones Training Center | ||