Combattants Etats-Unis
| 1951 |  | Rainy Martinez | 0-1-0 UFC | #6953 |  |
| 1952 |  | Rakim Cleveland | 2-5-0 REC | #3103 | |
| 1953 |  | Rakim Talley | 1-0-0 REC | #6310 | |
| 1954 |  | Ralph Hernandez III | 1-0-0 REC | #680 | |
| 1955 |  | Ramiro Hernandez | 0-2-0 UFC | #4176 | |
| 1956 |  | Ramiz Brahimaj | 5-4-0 UFC | #795 | |
| 1957 |  | Ramon Taveras | 1-2-0 UFC | #2346 | |
| 1958 |  | Ramsey Nijem | 5-5-0 UFC | #1901 | |
| 1959 |  | Randall Wallace | 2-2-0 REC | #4061 | |
| 1960 |  | Randy Costa | 2-4-0 UFC | #3116 | |
| 1961 |  | Randy Couture | 16-8-0 UFC | #59 | |
| 1962 |  | Randy Rivera-Santiago | 0-1-0 REC | #5157 | |
| 1963 |  | Randy Shores | 0-1-0 REC | #5729 | |
| 1964 |  | Raquel Canuto | 0-1-0 REC | #5313 | |
| 1965 |  | Raquel Pennington | 13-6-0 UFC | #55 | |
| 1966 |  | Ras Hylton | 0-1-0 REC | #6547 | |
| 1967 |  | Rashad Coulter | 1-3-0 UFC | #3853 | |
| 1968 |  | Rashad Evans | 14-8-1 UFC | #239 | |
| 1969 |  | Raufeon Stots | 4-3-0 REC | #2412 | |
| 1970 |  | Raul Navarrette | 1-1-0 REC | #2911 | |
| 1971 |  | Ray Borg | 7-5-0 UFC | #1300 | |
| 1972 |  | Ray Cooper III | 12-6-1 REC | #750 | |
| 1973 |  | Ray Rodriguez | 0-2-0 UFC | #4386 | |
| 1974 |  | Ray Wizard | 0-1-0 UFC | #6344 | |
| 1975 |  | Razak Al-Hassan | 0-2-0 UFC | #4978 | |