Poids Plumes Hommes
 | Rikuto Shirakawa | 0-1-0 REC | #5661 |  |
 | Rob Fenicle | 0-1-0 REC | #7111 |  |
 | Rob Whiteford | 2-3-0 UFC | #2991 |  |
 | Robbie Peralta | 4-3-0, 1NC UFC | #2998 | |
 | Robbie Ring | 0-2-0 REC | #4184 | |
 | Robert Ruchala | 0-2-0 UFC | #1405 |  |
 | Roberto Hernandez | 4-2-0 REC | #3536 | |
 | Roberto Romero | 0-2-0 UFC | #3069 |  |
 | Rocky Lee | 0-1-0 UFC | #4165 |  |
 | Rodion Mubarakshin | 0-2-0 REC | #5088 |  |
 | Rodolfo Rubio | 0-1-0 UFC | #6389 | |
 | Rodrigo Brauna | 2-0-0 REC | #1382 | |
 | Rodrigo Damm | 3-4-0 UFC | #3417 |  |
 | Rodrigo Praia | 1-1-0 REC | #5415 | |
 | Rodrigo Vera | 1-0-0 UFC | #1063 |  |
 | Roedie Roets | #7951 |  | |
 | Rogelio Luna | 1-1-0 REC | #6995 | |
 | Roger Severson | 0-2-0 REC | #5097 | |
 | Rolando Dy | 1-3-0 UFC | #4050 |  |
 | Roli Delgado | 1-2-0 UFC | #4755 | |