Poids Mouches Hommes
 | Ronaldo Rodriguez | 2-1-0 UFC | #1830 |  |
 | Roque Conceicao | 0-1-0 REC | #4884 |  |
 | Roybert Echeverria | 0-1-0 REC | #6211 |  |
 | Ruan Miqueias | #7329 | | |
 | Ruel Panales | 0-2-0 REC | #3963 |  |
 | Ruslan Abiltarov | 0-1-0 REC | #5849 |  |
 | Rustam Debishev | 1-0-0 REC | #6305 | |
 | Ryan Benoit | 3-6-0 UFC | #2405 |  |
 | Ryan Curtis | 0-1-0 REC | #6706 |  |
 | Ryan Kim | 0-1-0 REC | #7161 |  |
 | Ryoga Arimoto | #7611 |  | |
 | Ryosuke Honda | #7559 | | |
 | Sabir Talmoust | #7562 |  | |
 | Saher Qasmieh | 0-1-0 REC | #6306 |  |
 | Said-Akhmed Magomadov | 0-1-0 REC | #5719 | |
 | Sam Creasey | 3-2-0 REC | #3301 |  |
 | Samba Sima | 1-0-0 REC | #7300 |  |
 | Samir Faiddine | 1-2-0 REC | #3789 | |
 | Santo Curatolo | 0-1-0 REC | #6545 | |
 | Sattor Rizoev | 1-0-0 REC | #4080 | |