Tous les combattants
 | Robert Maciejowski | 0-1-0 REC | #7403 |  |
 | Robert Pukac | 6-8-0 REC | #796 |  |
 | Robert Ruchala | 0-2-0 UFC | #1411 | |
 | Robert Valentin | 2-3-0 UFC | #158 |  |
 | Robert Valiev | 0-2-0 REC | #5513 |  |
 | Robert Varricchio | 0-1-0 REC | #5968 |  |
 | Robert Watley | 2-3-0 REC | #2121 | |
 | Robert Whittaker | 18-7-0 UFC | #36 |  |
 | Roberta Paim Samad | 1-0-0 REC | #6993 |  |
 | Roberto de Souza | 4-3-0 REC | #1618 | |
 | Roberto Hernandez | 4-2-0 REC | #3436 | |
 | Roberto Romero | 0-2-0 UFC | #2990 |  |
 | Roberto Sanchez | 1-2-0 UFC | #4391 | |
 | Roberto Traven | 1-1-0 UFC | #4660 | |
 | Robin Fosum | 2-0-1 REC | #5364 |  |
 | Robin Frank | 0-1-0 REC | #5243 |  |
 | Robin Roos | 0-3-0 REC | #3842 |  |
 | Robson Junior | 1-0-0 REC | #6343 | |
 | Rocky Lee | 0-1-0 UFC | #4133 |  |
 | Rodion Mubarakshin | 0-2-0 REC | #4921 | |
 | Rodney Kealohi | 0-1-0 REC | #6538 | |
 | Rodney Wallace | 0-3-0 UFC | #4980 | |
 | Rodolfo Bellato | 2-1-1, 1NC UFC | #935 | |
 | Rodolfo Rubio | 0-1-0 UFC | #6227 | |
 | Rodolfo Vieira | 6-5-0 UFC | #977 | |