Poids Légers Hommes
 | Julian Schlouch | 0-1-0 REC | #7586 |  |
 | Juliano Prescendo | 1-1-0 REC | #2667 |  |
 | Junior Melo | 0-1-0 REC | #6159 | |
 | Juri Ohara | #7466 |  | |
 | Justin Buchholz | 1-4-0 UFC | #3786 |  |
 | Justin Gaethje | 10-5-0 UFC | #27 | |
 | Justin Gomez | 1-1-0 REC | #7520 | |
 | Justin James | 0-1-0 UFC | #6780 | |
 | Justin Jaynes | 1-4-0 UFC | #2791 | |
 | Justin Montalvo | 0-2-0 REC | #5748 | |
 | Justin Salas | 3-4-0 UFC | #2882 | |
 | Kacper Formela | 2-2-0 REC | #1457 |  |
 | Kacper Fornalski | 1-2-0 REC | #3348 | |
 | Kajan Johnson | 4-3-0 UFC | #2032 |  |
 | Kamal Shalorus | 0-3-0 UFC | #2579 |  |
 | Kamuela Kirk | 1-2-0 UFC | #3690 | |
 | Kane Mousah | 1-3-0 REC | #3599 |  |
 | Kanybek Zhanybekov | 0-2-0 REC | #4473 |  |
 | Karan Mosebach | #7373 |  | |
 | Karol Arteaga | 1-1-0 REC | #1469 |  |