| Fighter | Nickname | Height | Weight | Association | |
 |
Jacob Hebeisen | 5'4" (1.63 m) |
125 lbs (56.7 kg) |
Iron Clutch Fitness / Bangkok Boxing | |
|
Jacob Phipps | 0'0" (0 m) |
155 lbs (70.31 kg) |
Iron Mann MMA | |
|
Jakub Oskroba | 0'0" (0 m) |
155 lbs (70.31 kg) |
Iron Mielec | |
|
James Mogollon | "Bad Touch" | 5'7" (1.7 m) |
155 lbs (70.31 kg) |
Iron Horse Martial Arts |
|
Jason Fowler-Hill | 0'0" (0 m) |
265 lbs (120.2 kg) |
IRON Fight Club | |
|
Jean Pier Bazagoitia Arimuya | 0'0" (0 m) |
135 lbs (61.23 kg) |
Iron Monkey | |
|
Jennifer Lopez | 5'4" (1.63 m) |
125 lbs (56.7 kg) |
Iron Horse MMA | |
|
Jeremy Blackmon | 0'0" (0 m) |
125 lbs (56.7 kg) |
Iron Core Gym | |
|
Jhonatan Ferreira | "Jon" | 5'8" (1.73 m) |
135 lbs (61.23 kg) |
Iron Brothers |
|
Jo Van Duin | 5'9" (1.75 m) |
170 lbs (77.11 kg) |
Iron Wolves | |
|
Joao Pedro Miranda | "JP Nothorious" | 0'0" (0 m) |
220 lbs (99.79 kg) |
Iron Jiu-Jitsu |
|
Joe Johnson | 5'4" (1.63 m) |
144 lbs (65.32 kg) |
Iron Pit Fight Team | |
|
Joel Vasquez | "Action" | 5'6" (1.68 m) |
125 lbs (56.7 kg) |
Iron Rooster Muay Thai & MMA |
|
Johan Pedraza | 0'0" (0 m) |
170 lbs (77.11 kg) |
Team Iron Man | |
|
Johnny Harrison | 0'0" (0 m) |
0 lbs (0 kg) |
Iron Pit | |
|
Jon Viera | 0'0" (0 m) |
145 lbs (65.77 kg) |
Iron Rooster / Masterskya | |
|
Jonathan Bird | 5'6" (1.68 m) |
125 lbs (56.7 kg) |
Iron Tae Kwon Do | |
|
Jonathan Kessel | 5'10" (1.78 m) |
205 lbs (92.99 kg) |
Iron Fist Gym | |
|
Jonathan Urso | 6'0" (1.83 m) |
205 lbs (92.99 kg) |
Brazilian Top Team / Iron Xtreme | |
|
Jonyson Nascimento | "Jacare" | 0'0" (0 m) |
155 lbs (70.31 kg) |
Iron Jiu-Jitsu |
