';
| Fighter | Nickname | Height | Weight | Association | |
| Hannah Slater | "The Babba Yagga" | 0'0" (0 m) |
110 lbs (49.9 kg) |
Legacy MMA and Fitness | |
| Hector Salinas | "Briseida" | 0'0" (0 m) |
155 lbs (70.31 kg) |
Legacy MMA | |
| Jahel Calderon | 0'0" (0 m) |
125 lbs (56.7 kg) |
Legacy MMA / Brazilian Warriors | ||
| Jake Davis | "The Alpaca" | 0'0" (0 m) |
155 lbs (70.31 kg) |
Legacy MMA | |
| Jalon Johnson | "The Chosen One" | 6'0" (1.83 m) |
170 lbs (77.11 kg) |
Legacy MMA | |
| Jared Papazian | "The Jackhammer" | 5'8" (1.73 m) |
135 lbs (61.23 kg) |
Team Hayastan / Legacy MMA Academy / Gracie Barra Burbank | |
| Jesus Gomez | "Tarzan" | 5'3" (1.6 m) |
137 lbs (62.14 kg) |
Legacy MMA / Brazilian Warriors | |
| Jimena Serrano Flores | 0'0" (0 m) |
125 lbs (56.7 kg) |
Legacy MMA / Brazilian Warriors | ||
| Jonathan Sanchez | 0'0" (0 m) |
125 lbs (56.7 kg) |
Legacy MMA | ||
| Jorge Manzano | 5'8" (1.73 m) |
135 lbs (61.23 kg) |
Legacy MMA / Brazilian Warriors | ||
| Jose Ramirez | "El Mono" | 5'5" (1.65 m) |
125 lbs (56.7 kg) |
Legacy MMA / Brazilian Warriors | |
| Josh Bean | 5'9" (1.75 m) |
145 lbs (65.77 kg) |
Legacy MMA | ||
| Joshua Ramirez | 0'0" (0 m) |
170 lbs (77.11 kg) |
Legacy MMA / Brazilian Warriors | ||
| Josue Lopez Rosado | "El Leon" | 0'0" (0 m) |
145 lbs (65.77 kg) |
Legacy MMA / Brazilian Warriors | |
| Juan Carlos Cuevas | 5'8" (1.73 m) |
145 lbs (65.77 kg) |
Legacy MMA / Brazilian Warriors | ||
| Julio Luciano Perez | 0'0" (0 m) |
135 lbs (61.23 kg) |
Legacy MMA / Brazilian Warriors | ||
| Keenan Brown | "Killswitch" | 6'4" (1.93 m) |
185 lbs (83.91 kg) |
Legacy MMA & BJJ | |
| Keon Anders | 0'0" (0 m) |
145 lbs (65.77 kg) |
Legacy MMA and Fitness | ||
| Levi Nanney | 5'10" (1.78 m) |
170 lbs (77.11 kg) |
Legacy MMA | ||
| Manuel Romero | "Bullying" | 5'10" (1.78 m) |
185 lbs (83.91 kg) |
Legacy MMA / Brazilian Warriors | |