Poids Plumes Hommes
 | Jacob Kilburn | 0-2-0 UFC | #3486 |  |
 | Jacob Wiggins | 0-1-0 REC | #4532 | |
 | Jair Farias | 0-1-0 REC | #6434 |  |
 | Jake Childers | 0-1-0 REC | #4970 | |
 | Jake McHugh | 3-0-0 REC | #1770 |  |
 | Jakub Batfalsky | 4-2-0 REC | #647 |  |
 | Jakub Tichota | 3-4-0 REC | #2948 | |
 | Jamall Emmers | 5-4-0 UFC | #774 | |
 | James Adcock | 0-1-0 REC | #6708 | |
 | James Gallagher | 1-1-0 REC | #4346 |  |
 | James Guidry | 0-1-0 REC | #7064 | |
 | James Hendin | 4-2-0 REC | #1381 |  |
 | James Opio | 0-0-1 REC | #6180 |  |
 | Jamey Simmons | 0-2-0 UFC | #4212 | |
 | Jamie McGowan | 1-0-0 REC | #1529 |  |
 | Jan Masek | 2-2-0 REC | #1564 | |
 | Jarno Errens | 1-3-0 UFC | #2669 |  |
 | Jason Knight | 4-5-0 UFC | #2110 | |
 | Jason Young | 1-3-0 UFC | #3000 | |
 | Javier Garcia | 1-1-0, 1NC REC | #4324 | |