Poids Légers Hommes
 | Ronnie Gibbs | 1-0-0 REC | #3155 |  |
 | Ronys Torres | 0-2-0 UFC | #5044 |  |
 | Roosevelt Roberts | 4-5-0, 1NC UFC | #1843 | |
 | Ross Pearson | 12-13-0, 1NC UFC | #703 |  |
 | Rustam Asuev | 1-0-0 REC | #3499 |  |
 | Rustam Khabilov | 10-3-0 UFC | #745 | |
 | Ryan Campbell | 3-1-0 REC | #1770 |  |
 | Ryan Couture | 0-2-0 UFC | #4633 | |
 | Ryan Dela Cruz | 0-1-0 REC | #6744 | |
 | Ryan Eren Agbo | 0-2-0 REC | #3519 |  |
 | Ryan Gerena | #8162 | | |
 | Ryan Motley | 1-0-0 REC | #6140 | |
 | Ryan Puttbrese | 1-0-0 REC | #2287 | |
 | Ryan Teixeira | #7842 | | |
 | Ryota Oki | 1-0-0 REC | #2339 |  |
| Sahel Walizada | 0-1-0 REC | #7953 | |
 | Sahil Siraj | 1-2-0 REC | #4766 |  |
 | Said-Magomed Batukaev | 0-1-0 REC | #5340 | |
 | Said-Selim Lulaev | 2-0-0 REC | #384 | |
 | Sako Chivitchyan | 0-1-0 UFC | #5006 |  |