';
| Fighter | Nickname | Height | Weight | Association | |
| Ivan Mikovic | 5'6" (1.68 m) |
145 lbs (65.77 kg) |
Fight Gym Banovce | ||
| Ivan Semoglyadov | 5'5" (1.65 m) |
155 lbs (70.31 kg) |
Global Fight Gym | ||
| Jack Hayes | 5'2" (1.57 m) |
125 lbs (56.7 kg) |
M16 Fight & Fitness Gym | ||
| Jakob Walegren | 0'0" (0 m) |
125 lbs (56.7 kg) |
Orebro Fight Gym | ||
| James Bishop | "Pitbull" | 5'6" (1.68 m) |
155 lbs (70.31 kg) |
Strikeforce Canterbury Fight Gym | |
| James Long | 0'0" (0 m) |
135 lbs (61.23 kg) |
Elite Fight Gym | ||
| Jamie Ireson | 0'0" (0 m) |
170 lbs (77.11 kg) |
M16 Fight & Fitness Gym | ||
| Jan Hudak | 0'0" (0 m) |
155 lbs (70.31 kg) |
Spartakus Fight Gym | ||
| Jan Gerek | 5'10" (1.78 m) |
155 lbs (70.31 kg) |
Spartacus Fight Gym | ||
| Jan Svagerko | 0'0" (0 m) |
170 lbs (77.11 kg) |
Spartakus Fight Gym | ||
| Jan Parasinski | 0'0" (0 m) |
185 lbs (83.91 kg) |
Olimp Fight & Power Gym | ||
| Jarmo Paunonen | 0'0" (0 m) |
155 lbs (70.31 kg) |
GB Gym Helsinki / Primus Fight Team | ||
| Jean Kharlo Beralde | "The Samurai" | 0'0" (0 m) |
115 lbs (52.16 kg) |
Lipata Fight Club and Fitness Gym | |
| Jeferson Moura | 0'0" (0 m) |
145 lbs (65.77 kg) |
Fight Combat Mega Gym | ||
| Jefferson Lorenzo Ferreira de Vasconcelos | "Guerreiro" | 5'5" (1.65 m) |
135 lbs (61.23 kg) |
Leao de Juda Fight Team / Nak Su Thai Gym | |
| Jeremia Siregar | "The Teacher" | 5'3" (1.6 m) |
125 lbs (56.7 kg) |
Bhagasasi Gym / Walian Fight Club | |
| Jeremy Rodulfo | "Rampage" | 6'1" (1.85 m) |
245 lbs (111.13 kg) |
Combat Fit Gym / Fight Club TNT | |
| Jesus Rodriguez del Rosario | "Suso" | 0'0" (0 m) |
135 lbs (61.23 kg) |
Top Fight Gym | |
| Jesus Ramses Hernandez Gonzalez | 0'0" (0 m) |
135 lbs (61.23 kg) |
Top Fight Gym | ||
| Jiacheng Ma | 5'9" (1.75 m) |
155 lbs (70.31 kg) |
Tuowu Fight Gym | ||