Poids Légers Hommes
 | Joshua Adeboye | #7283 |  | |
 | Jovidon Khojaev | 0-1-0 REC | #5971 |  |
 | Juan Pablo Vieira | 3-0-0 REC | #1777 |  |
 | Juan Sarrios | 0-1-0 REC | #6998 |  |
 | Juan Velasquez Jr. | #6249 |  | |
 | Julian Schlouch | 0-1-0 REC | #7438 |  |
 | Juliano Prescendo | 1-1-0 REC | #2403 | |
 | Juri Ohara | #7274 |  | |
 | Justin Buchholz | 1-4-0 UFC | #3632 | |
 | Justin Gaethje | 10-5-0 UFC | #21 | |
 | Justin James | 0-1-0 UFC | #6649 | |
 | Justin Jaynes | 1-4-0 UFC | #2673 | |
 | Justin Montalvo | 0-2-0 REC | #5590 | |
 | Justin Salas | 3-4-0 UFC | #2762 | |
 | Kacper Formela | 2-2-0 REC | #1155 |  |
 | Kacper Fornalski | 1-2-0 REC | #3160 | |
 | Kajan Johnson | 4-3-0 UFC | #2002 |  |
 | Kamal Shalorus | 0-3-0 UFC | #2435 |  |
 | Kamuela Kirk | 1-2-0 UFC | #3663 | |
 | Kane Mousah | 1-3-0 REC | #3455 |  |