Poids Mouches Hommes
 | Randy Rivera-Santiago | 0-1-0 REC | #5167 |  |
 | Rashid Vagabov | 1-0-0 REC | #2511 |  |
 | Ray Borg | 7-5-0 UFC | #1336 | |
 | Raz Bring | 0-3-0 REC | #4553 |  |
 | Reda Hayfa | #7964 |  | |
 | Redgie Hingston | 0-2-1 REC | #3845 |  |
 | Renildo Monteiro | 0-1-0 REC | #7166 |  |
 | Ricardo Ramirez | 0-1-0 REC | #6135 |  |
 | Richard Mahan | 0-1-0 REC | #6311 | |
 | Richie Vaculik | 1-3-0 UFC | #3824 |  |
 | Rickson Zenidim | 0-1-0 REC | #5779 | |
 | Rilley Dutro | 0-1-0 REC | #6895 | |
 | Rio Tirto | 0-1-0 REC | #4181 |  |
 | Roberto Sanchez | 1-2-0 UFC | #4349 | |
 | Rodney Kealohi | 0-1-0 REC | #6515 | |
 | Rodrigo Roldan | 0-1-0 REC | #6032 |  |
 | Roldan Sangcha-an | 0-2-0 UFC | #4936 |  |
 | Romain Tango Ngouodjou | 0-2-0 REC | #1939 |  |
 | Romero dos Reis | 1-1-0 REC | #3812 | |
 | Ronal Siahaan | 1-2-0 REC | #4105 | |