Poids Mouches Hommes
 | Jimi Natividad | 0-1-0 REC | #5477 |  |
 | Jimmy Flick | 2-4-0 UFC | #2170 |  |
 | Jiniushiyue | 2-2-0 REC | #3501 |  |
 | Jo Arai | 0-2-0 REC | #4065 |  |
 | Joao Elias | 0-1-0 REC | #6183 |  |
 | Joby Sanchez | 1-4-0 UFC | #2927 | |
 | Joe Fields | 5-0-0 REC | #644 |  |
 | Joe Hiramoto | 1-1-0 REC | #2616 | |
 | John Dave Almanza | 0-1-0 REC | #5430 | |
 | John Moraga | 8-6-0 UFC | #1179 | |
 | Jon delos Reyes | 1-3-0 UFC | #3522 |  |
 | Jonny Touma | 0-2-0 REC | #3627 |  |
 | Jordan Burkholder | 1-3-0 REC | #3478 | |
 | Jordan Espinosa | 2-4-0 UFC | #2467 | |
 | Jordan Harris | 1-1-0 REC | #6028 | |
 | Jordan Molinari | 3-1-0 REC | #1258 | |
 | Jose Maria Tome | 0-2-0 UFC | #4997 | |
 | Jose Ochoa | 1-2-0 UFC | #1437 |  |
 | Jose Sandoval | 1-1-0 REC | #2563 |  |
 | Jose Vasquez | 0-1-0 REC | #5014 | |