Tous les combattants
 | Jack McLaughlin | 0-1-0 UFC | #6474 |  |
 | Jack McLoughlin | 2-1-0 REC | #659 |  |
 | Jack Nilson | 1-1-0 UFC | #5276 | |
| Jack Sheehan | #8107 | | |
 | Jack Shields | 4-3-0, 1NC UFC | #1622 | |
 | Jack Shore | 6-3-0 UFC | #1640 |  |
 | Jack Tucker | 0-1-0 REC | #6520 | |
 | Jack Woodard | 0-1-0 REC | #4778 | |
 | Jackie Cataline | 4-3-0 REC | #2473 | |
| Jackie Lee | 0-1-0 UFC | #6807 | |
 | Jackson Clarke | 1-0-0 REC | #6871 | |
 | Jackson Glass | 1-0-0 REC | #911 | |
 | Jackson McVey | 2-2-0 UFC | #196 | |
 | Jackson Ross | 0-1-0 REC | #5240 | |
 | Jacky Jeanne | 6-2-0 REC | #1550 |  |
 | Jacob Bohn | 0-1-0 REC | #6998 | |
| Jacob Hill | 0-1-0 REC | #7328 | |
 | Jacob Horton | 0-1-0 REC | #7633 | |
 | Jacob Kilburn | 0-2-0 UFC | #4014 | |
 | Jacob Lagoa | 1-0-0 REC | #1986 | |
 | Jacob Malkoun | 6-3-0 UFC | #681 |  |
 | Jacob Pais | 0-1-0 REC | #6605 | |
 | Jacob Romero | 0-1-0 REC | #7179 | |
 | Jacob Rosales | 1-3-0 REC | #2743 | |
 | Jacob Silva | 0-2-0 REC | #6453 | |