Poids Plumes Hommes
 | Roberto Hernandez | 4-2-0 REC | #3002 |  |
 | Roberto Romero | 0-2-0 UFC | #2587 |  |
 | Rocky Lee | 0-1-0 UFC | #3973 |  |
 | Rodion Mubarakshin | 0-2-0 REC | #4319 |  |
 | Rodolfo Rubio | 0-1-0 UFC | #6034 | |
 | Rodrigo Brauna | 1-0-0 REC | #3833 | |
 | Rodrigo Damm | 3-4-0 UFC | #2893 |  |
 | Rodrigo Praia | 1-1-0 REC | #4534 | |
 | Rodrigo Vera | 1-0-0 REC | #2664 |  |
 | Roedie Roets | #7208 |  | |
 | Rogelio Luna | 1-1-0 REC | #6249 | |
 | Roger Severson | 0-2-0 REC | #3984 | |
 | Rolando Dy | 1-3-0 UFC | #3426 |  |
 | Roli Delgado | 1-2-0 UFC | #4281 | |
 | Roman Bogatov | 0-1-0 UFC | #6769 | |
 | Roman Ogulchanskiy | 1-1-0 REC | #1100 |  |
 | Roman Puga | 2-0-0 REC | #274 | |
 | Ron Becker | 0-1-0 REC | #6905 |  |
 | Rony Jason | 4-4-0, 1NC UFC | #2408 | |
 | Rudson Caliocane | 0-1-0 REC | #5342 | |