Poids Lourds Hommes
 | Jovan Leka | 1-0-0 REC | #1955 |  |
 | Juan Adams | 1-3-0 UFC | #3167 |  |
 | Juan Espino | 2-1-0 UFC | #3013 |  |
 | Julian Sanchez | 0-1-0 UFC | #5627 | |
 | Julio Paulino | 0-2-0 UFC | #4132 | |
 | Junior Albini | 1-4-0 UFC | #3169 |  |
 | Junior Dos santos | 15-8-0 UFC | #155 | |
 | Justin Clarke | 2-1-0 REC | #962 |  |
 | Justin Eilers | 1-3-0 UFC | #3268 | |
 | Justin Frazier | 0-1-0 UFC | #4308 | |
 | Justin Martin | 1-0-0 UFC | #4819 | |
 | Justin McCully | 2-2-0 UFC | #3598 | |
 | Justin Smith | 0-1-0 REC | #6914 | |
 | Justin Tafa | 4-5-0, 1NC UFC | #1159 |  |
 | Justin Willis | 4-1-0 UFC | #2559 | |
 | Justin Wren | 0-1-0 UFC | #6507 | |
 | Kacper Paczoski | 1-0-0 REC | #1438 |  |
 | Kamil Gawryjolek | 2-2-0 REC | #3475 | |
 | Kamil Minda | 2-2-0 REC | #4559 | |
 | Karl Williams | 3-1-0 UFC | #1574 |  |