Poids Légers Hommes
 | Rasul Magomedov | 3-1-0 REC | #1635 |  |
 | Raul Tutarauli | 2-1-0 REC | #4087 |  |
 | Rayan Lessa | 0-1-0 REC | #5445 |  |
 | Rayhan Hilmi-Dias | 0-1-0 REC | #7780 |  |
 | Reed Bleymeyer | 0-1-0 REC | #6293 |  |
 | Renato Moicano | 13-7-0 UFC | #67 | |
 | Renee Forte | 1-3-0 UFC | #4415 | |
 | Renzo Cortti | 0-1-0 REC | #7499 |  |
 | Reza Madadi | 3-4-0 UFC | #2984 |  |
 | Ricardo Seixas | 0-1-0 REC | #6663 | |
 | Rich Clementi | 5-5-0 UFC | #2352 | |
 | Rich Crunkilton | 0-1-0 UFC | #7220 | |
 | Richard Daffron | 0-1-0 REC | #6861 | |
| Richard Silva | 1-0-0 REC | #1741 | |
 | Richie Hightower | 0-1-0 UFC | #5970 | |
 | Richie Lewis | 1-1-0 REC | #4550 | |
 | Richie Miranda | 0-1-0 UFC | #483 | |
 | Rick Davis | 0-1-0 UFC | #7223 | |
 | Ricky Glenn | 4-6-1 UFC | #2020 | |
 | Ricky Palacios | 1-0-0 REC | #7428 | |