Sorted alphabetically by last name · 2769 fighters
| Name | Nickname | |
|---|---|---|
| RM | Richie Miranda | "El Machete" |
| RS | Richie Smullen | |
| RV | Richie Vaculik | "Vas" |
| RD | Rick Davis | "The Flying Squirrel" |
| RS | Rick Story | "The Horror" |
| RG | Ricky Glenn | "The Gladiator" |
| RR | Ricky Rainey | "The Sniper" |
| RS |
| RT | Ricky Turcios |
| RF | Riki Fukuda |