Poids Légers Hommes
 | Roman Mitichyan | 1-1-0 UFC | #4015 |  |
 | Roman Szymanski | 2-3-0 REC | #1794 |  |
 | Roman Zhukov | 0-1-0 REC | #6243 |  |
 | Ronnie Gibbs | 1-0-0 REC | #2178 |  |
 | Ronys Torres | 0-2-0 UFC | #4546 |  |
 | Roosevelt Roberts | 4-5-0, 1NC UFC | #1688 | |
 | Ross Pearson | 12-13-0, 1NC UFC | #634 |  |
 | Rustam Khabilov | 10-3-0 UFC | #693 | |
 | Ryan Campbell | 3-1-0 REC | #873 |  |
 | Ryan Couture | 0-2-0 UFC | #4266 | |
 | Ryan Dela Cruz | 0-1-0 REC | #6322 | |
 | Ryan Eren Agbo | 0-1-0 REC | #7320 |  |
 | Ryan Motley | 1-0-0 REC | #5617 | |
 | Ryan Teixeira | #7281 | | |
 | Ryota Oki | #7490 |  | |
 | Sahel Walizada | 0-1-0 REC | #7432 | |
 | Sahil Siraj | 1-2-0 REC | #4202 |  |
 | Said-Magomed Batukaev | 0-1-0 REC | #5531 | |
 | Said-Selim Lulaev | 1-0-0 REC | #1360 | |
 | Sako Chivitchyan | 0-1-0 UFC | #5361 | |