Sorted alphabetically by last name · 2769 fighters
| Name | Nickname | |
|---|---|---|
| RG | Renzo Gracie | |
| RD | Reuben Duran | |
| RH | Rex Holman | "Big Dog" |
| RM | Reza Madadi | "Mad Dog" |
| RN | Reza Nasri | |
| RM | Rhys McKee | "Skeletor" |
| RA | Ricardo Abreu | "Demente" |
| RA | Ricardo Almeida |
| "Big Dog" |
| RF | Ricardo Funch | "Golden Boy" |
| RL | Ricardo Lamas | "The Bully" |