Tous les combattants
 | Roger Bowling | 0-2-0, 1NC UFC | #5593 |  |
 | Roger Gracie | 0-1-0 UFC | #4102 |  |
 | Roger Hollett | 0-2-0 UFC | #4996 |  |
 | Roger Huerta | 6-2-0 UFC | #1944 | |
 | Roger Narvaez | 1-2-0 UFC | #3912 | |
 | Roger Severson | 0-2-0 REC | #4899 | |
 | Roger Zapata | 0-1-0 UFC | #6757 | |
 | Rogerio Bontorin | 2-3-0, 1NC UFC | #2930 | |
 | Roggy Lawson | 1-0-0 REC | #7928 |  |
 | Roland Delorme | 3-3-0, 1NC UFC | #3249 | |
 | Roland Dunlap | 1-0-0 REC | #7267 | |
 | Roland Payne | 0-1-0 UFC | #4891 | |
 | Roland Pruden | 1-1-0 REC | #3298 | |
 | Roland Szolnoki | 1-0-0 REC | #7883 |  |
 | Rolando Bedoya | 0-4-0 UFC | #3147 |  |
 | Rolando Dy | 1-3-0 UFC | #3958 |  |
 | Roldan Sangcha-an | 0-2-0 UFC | #5136 | |
 | Roli Delgado | 1-2-0 UFC | #4699 | |
 | Rolles Gracie | 0-1-0 UFC | #6335 | |
 | Romain Debienne | 3-5-0 REC | #800 | |
 | Romain Tango Ngouodjou | 0-2-0 REC | #2079 | |
 | Roman Bogatov | 0-1-0 UFC | #7479 |  |
 | Roman David | 1-0-0 REC | #2892 |  |
 | Roman Dolidze | 9-5-0 UFC | #426 |  |
 | Roman Faraldo | 2-2-0 REC | #4146 | |