| Fighter | Nickname | Height | Weight | Association | |
 |
Jesus Iztcohaltl Melendez | 0'0" (0 m) |
185 lbs (83.91 kg) |
Spartan Rage | |
|
Jhonny Do Nascimento Neves | "Jhone Cage" | 0'0" (0 m) |
135 lbs (61.23 kg) |
Spartan Nenem Team |
|
Jimmy Van Horn | 6'1" (1.85 m) |
146 lbs (66.22 kg) |
Spartan Fight Club | |
|
Joanna Christofi | "Tap Tap" | 0'0" (0 m) |
150 lbs (68.04 kg) |
Spartan MMA |
|
Joel Bauman | "King Bau" | 6'2" (1.88 m) |
200 lbs (90.72 kg) |
Spartan MMA |
|
Johan Narse Narvaez | "El Pitbull" | 5'7" (1.7 m) |
135 lbs (61.23 kg) |
Spartan MMA |
|
Jonathan Miguel Loza | 0'0" (0 m) |
155 lbs (70.31 kg) |
Spartan Rage | |
|
Jordan Kaaze | "KamiKaaze" | 5'6" (1.68 m) |
125 lbs (56.7 kg) |
Spartan MMA |
|
Josey Casto | 0'0" (0 m) |
145 lbs (65.77 kg) |
Spartan Sports | |
|
Juan Deantes | "Little Diamond" | 5'2" (1.57 m) |
123 lbs (55.79 kg) |
Spartan's Thunder & Lightning Gym |
|
Juan Ramirez | 0'0" (0 m) |
135 lbs (61.23 kg) |
Spartan Gym Maneadero | |
|
Juan Pablo Ortiz | 0'0" (0 m) |
145 lbs (65.77 kg) |
Spartan Gracie Barra | |
|
Julian Bryan | 5'11" (1.8 m) |
157 lbs (71.21 kg) |
Spartan Gym | |
|
Justin Dee | 0'0" (0 m) |
170 lbs (77.11 kg) |
Spartan Fighting Arts Academy | |
|
Kali Chaterjee | 0'0" (0 m) |
265 lbs (120.2 kg) |
Spartan Fighting Arts Academy | |
|
Kamil Stolarczyk | 0'0" (0 m) |
170 lbs (77.11 kg) |
Spartan Chorzow | |
|
Kelly Kobold-Schmitz | "Machine Gun" | 5'5" (1.65 m) |
125 lbs (56.7 kg) |
Spartan Martial Arts |
|
Kenny Torrejon | 0'0" (0 m) |
115 lbs (52.16 kg) |
Team Black Spartan | |
|
Kieran Hewett | 5'5" (1.65 m) |
154 lbs (69.85 kg) |
Spartan Gym | |
|
Krzysztof Marczuk | 5'10" (1.78 m) |
170 lbs (77.11 kg) |
Spartan Knurow | |
