Tous les combattants
 | Jack Humphries | 5-0-0 REC | #963 |  |
 | Jack Jenkins | 4-2-0 UFC | #1119 |  |
 | Jack Maguire | 1-0-0 REC | #6407 |  |
 | Jack Marshman | 3-5-0 UFC | #2786 |  |
 | Jack May | 0-2-0 UFC | #3716 |  |
 | Jack McLaughlin | 0-1-0 UFC | #6138 | |
 | Jack McLoughlin | 1-1-0 REC | #950 | |
 | Jack Nilson | 1-1-0 UFC | #5024 | |
| Jack Sheehan | #7763 | | |
 | Jack Shields | 4-3-0, 1NC UFC | #1540 | |
 | Jack Shore | 6-3-0 UFC | #1457 | |
 | Jack Tucker | 0-1-0 REC | #6838 | |
 | Jack Woodard | 0-1-0 REC | #4355 | |
 | Jackie Cataline | 4-3-0 REC | #2344 | |
| Jackie Lee | 0-1-0 UFC | #6707 | |
 | Jackson Clarke | 1-0-0 REC | #6746 | |
 | Jackson McVey | 1-2-0 UFC | #311 | |
 | Jackson Ross | #7474 | | |
 | Jacky Jeanne | 6-2-0 REC | #1349 |  |
 | Jacob Bohn | 0-1-0 REC | #6880 | |
| Jacob Hill | 0-1-0 REC | #6542 | |
 | Jacob Horton | 0-1-0 REC | #7080 | |
 | Jacob Kilburn | 0-2-0 UFC | #3724 | |
 | Jacob Malkoun | 6-3-0 UFC | #301 | |
 | Jacob Romero | 0-1-0 REC | #6581 | |