Tous les combattants
 | Robert Pukac | 6-8-0 REC | #663 |  |
 | Robert Ruchala | 0-2-0 UFC | #1419 |  |
 | Robert Valentin | 1-3-0 UFC | #565 |  |
 | Robert Valiev | 0-2-0 REC | #5498 |  |
 | Robert Varricchio | 0-1-0 REC | #6123 |  |
 | Robert Watley | 2-3-0 REC | #1951 | |
 | Robert Whittaker | 17-7-0 UFC | #61 |  |
 | Roberta Paim Samad | 1-0-0 REC | #7103 |  |
 | Roberto de Souza | 4-3-0 REC | #1490 | |
 | Roberto Hernandez | 4-2-0 REC | #3346 | |
 | Roberto Romero | 0-2-0 UFC | #2906 |  |
 | Roberto Sanchez | 1-2-0 UFC | #4421 | |
 | Roberto Traven | 1-1-0 UFC | #4610 | |
 | Robin Fosum | 2-0-1 REC | #5408 |  |
 | Robin Frank | 0-1-0 REC | #5208 |  |
 | Robin Roos | 0-3-0 REC | #3724 |  |
 | Robson Junior | 1-0-0 REC | #6533 | |
 | Rocky Lee | 0-1-0 UFC | #4100 |  |
 | Rodion Mubarakshin | 0-2-0 REC | #4779 | |
 | Rodney Kealohi | 0-1-0 REC | #6509 | |
 | Rodney Wallace | 0-3-0 UFC | #4887 | |
 | Rodolfo Bellato | 2-1-1, 1NC UFC | #795 | |
 | Rodolfo Rubio | 0-1-0 UFC | #6344 | |
 | Rodolfo Vieira | 6-5-0 UFC | #900 | |
 | Rodrigo Brauna | 2-0-0 REC | #833 | |