Poids Moyens Hommes
 | Juan Cabrera | #7771 |  | |
 | Jules Bruchez | 0-1-0 UFC | #7095 |  |
 | Julian Marquez | 3-5-0 UFC | #1987 | |
 | Julien Leblanc | 0-1-0 UFC | #2939 |  |
 | Julio Spadaccini | 1-0-0 REC | #1783 |  |
 | Jun Yong Park | 9-4-0 UFC | #587 |  |
 | Junior Orgulho | 0-1-0 REC | #7251 | |
 | Justin Barry | 0-1-0 REC | #6375 | |
 | Justin Detzel | 1-0-0 REC | #1009 |  |
 | Justin Levens | 0-2-0 UFC | #5580 | |
 | Kacper Fratczak | 1-0-0 REC | #1254 |  |
 | Kacper Karski | 0-1-0 REC | #7322 | |
 | Kacper Pakeltys | 1-0-0 REC | #2255 | |
 | Kailan Hill | 0-1-0 REC | #6295 |  |
 | Kamil Oniszczuk | 3-3-0 REC | #1413 | |
 | Kamil Wojciechowski | 0-2-0 REC | #6125 | |
 | Karl Roberson | 4-6-0 UFC | #2111 | |
 | Kazuhiro Nakamura | 0-2-0 UFC | #4901 |  |
 | KB Bhullar | 0-2-0 UFC | #5391 | |
 | Keiichiro Yamamiya | 0-1-0 UFC | #7094 | |