Tous les combattants
 | Roger Bowling | 0-2-0, 1NC UFC | #5480 |  |
 | Roger Gracie | 0-1-0 UFC | #4176 |  |
 | Roger Hollett | 0-2-0 UFC | #4870 |  |
 | Roger Huerta | 6-2-0 UFC | #1944 | |
 | Roger Narvaez | 1-2-0 UFC | #3808 | |
 | Roger Severson | 0-2-0 REC | #4625 | |
 | Roger Zapata | 0-1-0 UFC | #6631 | |
 | Rogerio Bontorin | 2-3-0, 1NC UFC | #2910 | |
 | Roggy Lawson | 1-0-0 REC | #7803 |  |
 | Roland Delorme | 3-3-0, 1NC UFC | #3164 | |
 | Roland Dunlap | 1-0-0 REC | #7339 | |
 | Roland Payne | 0-1-0 UFC | #4751 | |
 | Roland Pruden | 1-1-0 REC | #3138 | |
 | Roland Szolnoki | 1-0-0 REC | #7769 |  |
 | Rolando Bedoya | 0-4-0 UFC | #3013 |  |
 | Rolando Dy | 1-3-0 UFC | #3833 |  |
 | Roldan Sangcha-an | 0-2-0 UFC | #4988 | |
 | Roli Delgado | 1-2-0 UFC | #4627 | |
 | Rolles Gracie | 0-1-0 UFC | #6295 | |
 | Romain Debienne | 3-5-0 REC | #568 | |
 | Romain Tango Ngouodjou | 0-2-0 REC | #1992 | |
 | Roman Bogatov | 0-1-0 UFC | #7295 |  |
 | Roman David | 1-0-0 REC | #2616 |  |
 | Roman Dolidze | 9-5-0 UFC | #431 |  |
 | Roman Faraldo | 2-2-0 REC | #4044 | |