| Fighter | Nickname | Height | Weight | Association | |
 |
Jason Jones | 6'2" (1.88 m) |
170 lbs (77.11 kg) |
10th Planet Jiu-Jitsu Riverside | |
|
Jerome Ataman | "The Kumba Man" | 5'10" (1.78 m) |
145 lbs (65.77 kg) |
10th Planet Jiu-Jitsu Riverside |
|
Jesse Lawrence | 5'8" (1.73 m) |
170 lbs (77.11 kg) |
10th Planet Jiu-Jitsu Jacksonville | |
|
Jesse Cervantes | "Big Foot" | 6'3" (1.91 m) |
251 lbs (113.85 kg) |
10th Planet Jiu-Jitsu Corona / Dominant Breed Boxing |
|
Jesse Arimas | 0'0" (0 m) |
145 lbs (65.77 kg) |
10th Planet San Diego | |
|
Jessica Martinez | "The Proud Chicana" | 5'6" (1.68 m) |
135 lbs (61.23 kg) |
Kings MMA / 10th Planet Jiu-Jitsu |
|
Jesus Urbina | 5'3" (1.6 m) |
125 lbs (56.7 kg) |
10th Planet Jiu Jitsu El Paso | |
|
Ji Soo Choi | 5'10" (1.78 m) |
156 lbs (70.76 kg) |
10th Planet Jiu Jitsu Korea | |
|
Jobani Herrera | 5'2" (1.57 m) |
125 lbs (56.7 kg) |
10th Planet Jiu-Jitsu | |
|
Joey Guevara | 5'9" (1.75 m) |
155 lbs (70.31 kg) |
10th Planet Jiu-Jitsu Riverside | |
|
John Yoo | 5'9" (1.75 m) |
135 lbs (61.23 kg) |
10th Planet Costa Mesa | |
|
Johnny Maldonado | 5'4" (1.63 m) |
125 lbs (56.7 kg) |
10th Planet Mission Viejo | |
|
Jonathan Enriquez | "Damage" | 5'5" (1.65 m) |
125 lbs (56.7 kg) |
10th Planet Jiu Jitsu San Antonio |
|
Jonathan Green | "Jaay Artist" | 6'2" (1.88 m) |
180 lbs (81.65 kg) |
10th Planet El Paso |
|
Jong Gun Cho | 0'0" (0 m) |
125 lbs (56.7 kg) |
10th Planet Jiu Jitsu Korea | |
|
Jong Pil Cho | 0'0" (0 m) |
145 lbs (65.77 kg) |
10th Planet Jiu Jitsu Korea | |
|
Jordan Mims | 5'1" (1.55 m) |
135 lbs (61.23 kg) |
Team Jordan / 10th Planet Van Nuys | |
|
Jordan Nielsen | 6'2" (1.88 m) |
185 lbs (83.91 kg) |
10th Planet Jiu Jitsu Lincoln | |
|
Jorge Pineda | 5'9" (1.75 m) |
155 lbs (70.31 kg) |
King's MMA / 10th Planet Jiu-Jitsu | |
|
Joseph Deacon | 5'9" (1.75 m) |
170 lbs (77.11 kg) |
10th Planet San Diego | |
