Poids Plumes Hommes
 | Julio Arce | 6-4-0 UFC | #1302 |  |
 | Julio Cesar Neves | 0-2-0 REC | #4654 |  |
 | Julio Pereira | 2-0-0 REC | #978 | |
 | Julius Vega | 1-0-0 REC | #6497 | |
 | Jun Young Hong | 0-2-0 REC | #3443 |  |
 | Junior Assuncao | 2-3-0 UFC | #3627 | |
 | Junior Duarte | 0-1-0 REC | #7287 | |
 | Jurabek Malaev | #7431 |  | |
 | Justice Torres | 0-1-0 REC | #4930 | |
 | Justin Gonzales | 3-4-0 REC | #3249 | |
 | Justin Lawrence | 1-2-0 UFC | #4312 | |
 | Justin Thompson | 0-1-0 REC | #7244 | |
 | Kaan Ofli | 2-2-0 UFC | #838 |  |
 | Kafiz Sakibekov | 1-3-0 REC | #494 |  |
 | Kai Kamaka III | 2-2-1 UFC | #622 | |
 | Kai Lu | 1-2-0 REC | #4447 |  |
 | Kaiwen Li | 3-2-0 REC | #1712 | |
 | Kaleio Romero | 0-1-0 REC | #7122 | |
 | Kaleo Meheula | #6672 | | |
 | Kallum Parker | 1-4-0 REC | #4299 |  |