Poids Mouches Hommes
 | Rickson Zenidim | 0-1-0 REC | #6028 |  |
 | Rilley Dutro | 0-1-0 REC | #7132 |  |
 | Rio Tirto | 0-1-0 REC | #4365 |  |
 | Roberto Sanchez | 1-2-0 UFC | #4419 | |
 | Rodney Kealohi | 0-1-0 REC | #6524 | |
 | Rodrigo Roldan | 0-1-0 REC | #6275 |  |
 | Roldan Sangcha-an | 0-2-0 UFC | #4983 |  |
 | Romain Tango Ngouodjou | 0-2-0 REC | #1990 |  |
 | Romero dos Reis | 1-1-0 REC | #3902 | |
 | Ronal Siahaan | 1-2-0 REC | #4228 | |
 | Ronaldo Candido | 0-1-0 REC | #7374 | |
 | Ronaldo Rodriguez | 2-1-0 UFC | #2099 |  |
 | Roque Conceicao | 0-1-0 REC | #5375 | |
 | Roybert Echeverria | 0-1-0 REC | #6753 |  |
 | Ruan Miqueias | #7742 | | |
 | Ruel Panales | 0-2-0 REC | #4413 | |
 | Rui Kato | 0-1-0 REC | #6704 |  |
 | Ruslan Abiltarov | 0-1-0 REC | #6447 |  |
 | Rustam Debishev | 1-0-0 REC | #6906 | |
 | Ryan Benoit | 3-6-0 UFC | #2560 | |