Poids Mi-Lourds Hommes
 | Rasul Magomedov | 2-0-0 REC | #1327 |  |
 | Rasul Saithozhaev | 1-1-0 REC | #4337 |  |
 | Reese Andy | 0-2-0 UFC | #5344 |  |
 | Renato Sobral | 6-4-0 UFC | #1720 |  |
 | Reylan Gracie | 0-1-0 REC | #5826 | |
 | Reza Nasri | 0-1-0 UFC | #4888 |  |
 | Ricardo Romero | 1-2-0 UFC | #4422 | |
 | Riccardo Nosiglia | 0-2-0 REC | #7246 |  |
 | Richard Muzaan | 0-1-0 REC | #6601 |  |
 | Richardson Moreira | 0-2-0 UFC | #6046 | |
 | Riku Urholin | 0-1-0 REC | #5921 |  |
 | Rob Wilkinson | 0-2-0 UFC | #307 |  |
 | Robert Drysdale | #7327 | | |
 | Robert Whittaker | 18-7-0 UFC | #57 |  |
 | Rodney Wallace | 0-3-0 UFC | #4910 | |
 | Rodolfo Bellato | 2-1-1, 1NC UFC | #819 | |
 | Roland Dunlap | 1-0-0 REC | #7345 | |
 | Roland Payne | 0-1-0 UFC | #4761 | |
 | Roman Kiziuk | 0-1-0 REC | #6089 |  |
 | Ron Van Clief | 0-1-0 UFC | #4718 | |