Tous les combattants
 | Roman Kiziuk | 0-1-0 REC | #6265 |  |
 | Roman Kopylov | 7-5-0 UFC | #438 |  |
 | Roman Kurashvili | 1-0-0 REC | #2110 |  |
 | Roman Mitichyan | 1-1-0 UFC | #4372 |  |
 | Roman Ogulchanskiy | 1-1-0 REC | #2211 | |
 | Roman Paulus | 10-5-0 REC | #489 |  |
 | Roman Puga | 3-0-0 REC | #1431 |  |
 | Roman Salazar | 0-2-0, 1NC UFC | #3955 | |
 | Roman Szymanski | 2-4-0 REC | #2287 |  |
 | Roman Zhukov | 0-1-0 REC | #7143 | |
 | Romero Cotton | 1-2-0 REC | #5582 | |
 | Romero dos Reis | 1-1-0 REC | #4031 |  |
 | Romie Aram | 0-1-0 UFC | #6011 |  |
 | Romulo Oliveira | 0-1-0 REC | #6840 | |
 | Ron Becker | 0-1-0 REC | #7421 |  |
 | Ron Faircloth | #7560 | | |
 | Ron Humphrey | 1-0-0 REC | #2454 | |
 | Ron Stallings | 1-2-0 UFC | #4016 | |
 | Ron Van Clief | 0-1-0 UFC | #4772 | |
 | Ron Waterman | 2-1-1 UFC | #3665 | |
 | Ronal Siahaan | 1-2-0 REC | #4332 |  |
 | Ronald Jhun | 0-1-0 UFC | #7194 | |
 | Ronald Paradeiser | 11-5-0 REC | #522 | |
 | Ronaldo Candido | 0-1-0 REC | #7499 | |
 | Ronaldo Rodriguez | 2-1-0 UFC | #2205 |  |