Poids Mouches Hommes
 | Rickson Zenidim | #6876 |  | |
 | Rikiya Matsuzawa | #8478 |  | |
 | Rilley Dutro | #7795 |  | |
 | Rio Kimura | #8479 | | |
 | Rio Tirto | #4994 |  | |
 | Roberto Sanchez | 1-2-0 UFC | #4577 | |
 | Rodney Kealohi | #6994 | | |
 | Rodrigo Roldan | #6949 |  | |
 | Roldan Sangcha-an | 0-2-0 UFC | #5479 |  |
 | Romain Tango Ngouodjou | #2316 |  | |
 | Romero dos Reis | #4320 | | |
 | Ronal Siahaan | #4575 | | |
 | Ronaldo Candido | #7740 | | |
 | Ronaldo Rodriguez | 2-1-0 UFC | #1874 |  |
 | Ronan Deegan | 5-0-0 MMA | #910 |  |
 | Roque Conceicao | 12-3-0 MMA | #574 | |
 | Roybert Echeverria | #7021 |  | |
 | Ruan Miqueias | #8111 | | |
 | Ruel Panales | #4782 | | |
 | Rui Kato | #6673 | |