Sorted alphabetically by last name · 2707 fighters
| Name | Nickname | |
|---|---|---|
| BQ | Billy Quarantillo | |
| BR | Billy Ray Goff | |
| BI | Blagoy Ivanov | "Baga" |
| BB | Blake Bilder | "El Animal" |
| BD | Blood Diamond | |
| BN | Bo Nickal | |
| BC | Bob Cook | "Crazy" |
| BG | Bob Gilstrap | |
| BH | Bobby Hoffman | "The Truth" |
| BM | Bobby Moffett | "The Wolfman" |