| Fighter | Nickname | Height | Weight | Association | |
 |
Jairo Kabuloso | 0'0" (0 m) |
135 lbs (61.23 kg) |
Octagon Team | |
|
Jakub Rehorcik | 5'8" (1.73 m) |
205 lbs (92.99 kg) |
Octagon Fighting Academy | |
|
Jakub Grajza | 0'0" (0 m) |
185 lbs (83.91 kg) |
Octagon Fighting Academy | |
|
Jakub Pierwola | 0'0" (0 m) |
170 lbs (77.11 kg) |
Octagon Team Cieszyn | |
|
Jan Cernoch | 5'10" (1.78 m) |
145 lbs (65.77 kg) |
Octagon Fighting Academy | |
|
Jan Velic | 5'6" (1.68 m) |
155 lbs (70.31 kg) |
Octagon Fighting Academy | |
|
Jan Sipos | 5'11" (1.8 m) |
155 lbs (70.31 kg) |
Octagon Fighting Academy | |
|
Jensil Sefa | 0'0" (0 m) |
145 lbs (65.77 kg) |
Octagon Fight Club | |
|
Jesse Palmer | 0'0" (0 m) |
159 lbs (72.12 kg) |
Octagon MMA | |
|
Jesse Rojo | 0'0" (0 m) |
135 lbs (61.23 kg) |
The Octagon MMA | |
|
Jhon Bedoya | "Ronin" | 0'0" (0 m) |
145 lbs (65.77 kg) |
Octagon MMA |
|
Jin Soo-Kim | 0'0" (0 m) |
135 lbs (61.23 kg) |
Octagon Multi Gym | |
|
Joao Henrique dos Santos | "Pe de Feijao" | 0'0" (0 m) |
155 lbs (70.31 kg) |
Nova Patria Jiu-Jitsu / Octagon Fight |
|
Johanson Morales | 0'0" (0 m) |
135 lbs (61.23 kg) |
Iquique Octagon | |
|
Johny Shu | 0'0" (0 m) |
207 lbs (93.89 kg) |
Octagon Combat Centre | |
|
Jonathan Vergara | "La Piedra" | 0'0" (0 m) |
145 lbs (65.77 kg) |
Iquique Octagon |
|
Josue Ledesma | "El Colorin" | 0'0" (0 m) |
170 lbs (77.11 kg) |
Iquique Octagon |
|
Jozef Jaloviar | 6'3" (1.91 m) |
205 lbs (92.99 kg) |
Octagon Fighting Academy | |
|
Juan Carlos Miranda | "Chiqui" | 5'4" (1.63 m) |
125 lbs (56.7 kg) |
Octagon MMA |
|
Julius Pelikan | 0'0" (0 m) |
145 lbs (65.77 kg) |
Octagon Fighting Academy | |
