Sorted alphabetically by last name · 2765 fighters
| Name | Nickname | |
|---|---|---|
| RM | Ryan MacDonald | "Main Event" |
| RM | Ryan Madigan | |
| RM | Ryan McGillivray | "The Kid" |
| RP | Ryan Parker | |
| RR | Ryan Roberts | |
| RS | Ryan Spann | "Superman" |
| RT | Ryan Thomas | "The Tank Engine" |
| RC | Ryo Chonan |
| "Piranah" |
| SH | Sabah Homasi |
| SM | Sabina Mazo | "Colombian Queen" |