Poids Légers Hommes
 | Richie Lewis | 1-1-0 REC | #4383 |  |
 | Richie Miranda | 7-0-0 REC | #359 | |
 | Rick Davis | 0-1-0 UFC | #7022 | |
 | Ricky Glenn | 4-6-1 UFC | #2039 | |
 | Ricky Palacios | 1-0-0 REC | #7211 | |
 | Risto Dimitrov | 0-1-0 REC | #7538 |  |
 | Rizwan Ali | 1-0-0 REC | #2146 |  |
 | Robert Varricchio | 0-1-0 REC | #6067 | |
 | Robert Watley | 2-3-0 REC | #1977 | |
 | Roberto de Souza | 4-3-0 REC | #1501 |  |
 | Robin Frank | 0-1-0 REC | #5202 |  |
 | Robson Junior | 1-0-0 REC | #6445 | |
 | Rodrigo de Lima | 0-2-0 UFC | #4632 | |
 | Rodrigo Lidio | 0-2-0 REC | #5692 | |
 | Rodrigo Paiva | 0-1-0 REC | #6008 | |
 | Rodrigo Vargas | 1-3-0 UFC | #3085 |  |
 | Roger Bowling | 0-2-0, 1NC UFC | #5480 | |
 | Roland Pruden | 1-1-0 REC | #3155 | |
 | Roland Szolnoki | 1-0-0 REC | #7790 |  |
 | Rolando Bedoya | 0-4-0 UFC | #3035 |  |