Tous les combattants
 | Jack Humphries | 5-0-0 REC | #701 |  |
 | Jack Jenkins | 4-2-0 UFC | #1087 |  |
 | Jack Maguire | 1-0-0 REC | #6123 |  |
 | Jack Marshman | 3-5-0 UFC | #2691 |  |
 | Jack May | 0-2-0 UFC | #3606 |  |
 | Jack McLaughlin | 0-1-0 UFC | #5882 | |
 | Jack McLoughlin | 1-1-0 REC | #540 | |
 | Jack Nilson | 1-1-0 UFC | #4852 | |
 | Jack Shields | 4-3-0, 1NC UFC | #1489 | |
 | Jack Shore | 6-3-0 UFC | #1406 | |
 | Jack Tucker | 0-1-0 REC | #6602 | |
 | Jack Woodard | #7425 | | |
 | Jackie Cataline | 4-3-0 REC | #2250 | |
| Jackie Lee | 0-1-0 UFC | #6565 | |
 | Jackson Clarke | 1-0-0 REC | #6526 | |
 | Jackson McVey | 0-2-0 UFC | #1434 | |
 | Jackson Ross | #7249 | | |
 | Jacky Jeanne | 6-2-0 REC | #1225 |  |
 | Jacob Bohn | 0-1-0 REC | #6591 | |
| Jacob Hill | 0-1-0 REC | #6220 | |
 | Jacob Horton | 0-1-0 REC | #6843 | |
 | Jacob Kilburn | 0-2-0 UFC | #3542 | |
 | Jacob Malkoun | 5-3-0 UFC | #686 | |
 | Jacob Romero | 0-1-0 REC | #6349 | |
 | Jacob Rosales | 1-3-0 REC | #1951 | |