Tous les combattants
 | Robbie Ring | 0-2-0 REC | #4187 |  |
 | Robelis Despaigne | 1-2-0 UFC | #668 |  |
 | Robert Bryczek | 1-2-0 UFC | #1439 |  |
 | Robert Constantin | 0-1-0 REC | #5292 |  |
 | Robert Drysdale | #7355 | | |
 | Robert Emerson | 3-3-0, 1NC UFC | #2968 | |
 | Robert Hale | 0-1-0 REC | #7049 | |
 | Robert Lau | #8152 |  | |
 | Robert Lucarelli | 0-1-0 UFC | #5728 | |
 | Robert Maciejowski | 0-1-0 REC | #7462 | |
 | Robert Pukac | 6-8-0 REC | #856 |  |
 | Robert Ruchala | 0-2-0 UFC | #1419 | |
 | Robert Valentin | 2-3-0 UFC | #200 |  |
 | Robert Valiev | 0-2-0 REC | #5466 |  |
 | Robert Varricchio | 0-1-0 REC | #5839 | |
 | Robert Watley | 2-3-0 REC | #2158 | |
 | Robert Whittaker | 18-7-0 UFC | #44 |  |
 | Roberta Paim Samad | 1-0-0 REC | #6982 |  |
 | Roberto de Souza | 4-3-0 REC | #1648 | |
 | Roberto Hernandez | 4-2-0 REC | #3451 | |
 | Roberto Romero | 0-2-0 UFC | #3014 |  |
 | Roberto Sanchez | 1-2-0 UFC | #4367 | |
 | Roberto Traven | 1-1-0 UFC | #4687 | |
 | Robin Fosum | 2-0-1 REC | #5331 |  |
 | Robin Frank | 0-1-0 REC | #5236 | |