Poids Légers Hommes
 | Islam Mamedov | 6-1-1 REC | #2149 |  |
 | Ismael Bonfim | 2-4-0 UFC | #337 |  |
 | Israel Delgado | 1-1-0 REC | #5967 |  |
 | Issa Isakov | 0-1-0 REC | #4523 |  |
 | Italo Cruz | 2-1-0 REC | #1501 | |
 | Italo Julio | 0-1-0 REC | #7561 | |
 | Italo Ribeiro | 0-2-0 REC | #5781 | |
 | Ivan Buchinger | 8-3-0 REC | #934 |  |
 | Ivan Klevets | 2-2-0 REC | #382 |  |
 | Ivan Yashmanov | 0-1-0 REC | #7206 | |
 | J.C. Cottrell | 0-2-0 UFC | #5492 | |
 | Jaad Sekkal | 1-0-0 REC | #2229 |  |
 | Jack Becker | 0-1-0 REC | #5174 |  |
 | Jack Sheehan | #8048 | | |
 | Jacob Bohn | 0-1-0 REC | #6900 | |
| Jacob Hill | 0-1-0 REC | #7197 | |
 | Jacob Lagoa | 1-0-0 REC | #1889 | |
 | Jacob Rosales | 1-3-0 REC | #2684 | |
 | Jacobi Jones | 2-3-0 REC | #2713 | |
 | Jae Hyun Park | 1-2-0 REC | #2715 |  |