Poids Mouches Hommes
 | Rodney Kealohi | 0-1-0 REC | #6184 |  |
 | Rodrigo Roldan | 0-1-0 REC | #5660 |  |
 | Roldan Sangcha-an | 0-2-0 UFC | #4824 |  |
 | Romain Tango Ngouodjou | 0-1-0 REC | #2581 |  |
 | Romero dos Reis | 1-1-0 REC | #3479 |  |
 | Ronal Siahaan | 1-2-0 REC | #3979 |  |
 | Ronaldo Candido | 0-1-0 REC | #6855 | |
 | Ronaldo Rodriguez | 2-1-0 UFC | #1723 |  |
 | Roque Conceicao | 0-1-0 REC | #4788 | |
 | Roybert Echeverria | 0-1-0 REC | #6075 |  |
 | Ruan Miqueias | #7226 | | |
 | Ruel Panales | 0-2-0 REC | #3884 | |
 | Ruslan Abiltarov | 0-1-0 REC | #5753 |  |
 | Rustam Debishev | 1-0-0 REC | #6202 | |
 | Ryan Benoit | 3-6-0 UFC | #2361 | |
 | Ryan Curtis | 0-1-0 REC | #6609 |  |
 | Ryan Kim | 0-1-0 REC | #7035 |  |
 | Ryosuke Honda | #7474 |  | |
 | Saher Qasmieh | 0-1-0 REC | #6340 |  |
 | Said-Akhmed Magomadov | 0-1-0 REC | #5529 | |