Tous les combattants
 | Jack Congdon | 0-1-0 REC | #5137 |  |
 | Jack Dedames | #7709 |  | |
 | Jack Della Maddalena | 8-2-0 UFC | #59 |  |
 | Jack Duffy | 0-1-0 REC | #5560 | |
 | Jack Eglin | 2-2-0 REC | #4813 | |
 | Jack Foote | 3-0-0 REC | #602 |  |
 | Jack Grant | 2-2-0 REC | #644 | |
 | Jack Hermansson | 11-8-0 UFC | #434 |  |
 | Jack Humphries | 5-0-0 REC | #1242 | |
 | Jack Jenkins | 4-2-0 UFC | #1283 | |
 | Jack Maguire | 1-0-0 REC | #6522 |  |
 | Jack Marshman | 3-5-0 UFC | #2902 |  |
 | Jack May | 0-2-0 UFC | #3858 | |
 | Jack McLaughlin | 0-1-0 UFC | #6251 | |
 | Jack McLoughlin | 2-1-0 REC | #285 | |
 | Jack Nilson | 1-1-0 UFC | #5191 | |
| Jack Sheehan | #7931 | | |
 | Jack Shields | 4-3-0, 1NC UFC | #1624 | |
 | Jack Shore | 6-3-0 UFC | #1595 | |
 | Jack Tucker | 0-1-0 REC | #6807 | |
 | Jack Woodard | 0-1-0 REC | #4647 | |
 | Jackie Cataline | 4-3-0 REC | #2420 | |
| Jackie Lee | 0-1-0 UFC | #6750 | |
 | Jackson Clarke | 1-0-0 REC | #6906 | |
 | Jackson McVey | 1-2-0 UFC | #579 | |