| First | Last | Nickname | Ht. | Wt. | Reach | Stance | W | L | D | Belt |
|---|---|---|---|---|---|---|---|---|---|---|
| Chase | Beebe | 5' 7" | 135 lbs. | 67.0" | Orthodox | 24 | 13 | 1 | ||
| Lyle | Beerbohm | Fancy Pants | 5' 10" | 155 lbs. | -- | Southpaw | 24 | 3 | 0 | |
| Allan | Begosso | Mini | 5' 5" | 135 lbs. | 66.0" | Orthodox | 7 | 2 | 1 | |
| Mirsad | Bektic | 5' 8" | 145 lbs. | 70.0" | Orthodox | 13 | 4 | 0 | ||
| Diana | Belbita | The Warrior Princess | 5' 7" | 115 lbs. | 68.0" | Orthodox | 15 | 9 | 0 | |
| Alan | Belcher | The Talent | 6' 2" | 185 lbs. | 75.0" | Orthodox | 18 | 8 | 0 | |
| Vitor | Belfort | The Phenom | 6' 0" | 185 lbs. | 74.0" | Southpaw | 26 | 14 | 0 | |
| Yousri | Belgaroui | Baby Face Assassin | 6' 5" | 185 lbs. | 79.0" | Orthodox | 5 | 3 | 0 | |
| Rodolfo | Bellato | Trator | 6' 3" | 205 lbs. | 77.0" | Orthodox | 12 | 2 | 0 | |
| Danilo | Belluardo | Caterpillar | 6' 0" | 155 lbs. | 74.0" | Southpaw | 12 | 5 | 0 | |
| Joey | Beltran | The Mexicutioner | 6' 1" | 185 lbs. | 75.0" | Orthodox | 17 | 14 | 0 | |
| Marco | Beltran | Psycho | 5' 8" | 125 lbs. | 69.0" | Orthodox | 8 | 6 | 0 | |
| Joseph | Benavidez | 5' 4" | 125 lbs. | 65.0" | Southpaw | 28 | 8 | 0 | ||
| Mike | Bencic | Batman | 6' 0" | 215 lbs. | -- | Orthodox | 1 | 2 | 0 | |
| Dave | Beneteau | Dangerous | 6' 2" | 250 lbs. | -- | Orthodox | 6 | 5 | 1 | |
| Karla | Benitez | 5' 3" | 113 lbs. | -- | 14 | 11 | 1 | |||
| Gabriel | Benitez | Moggly | 5' 8" | 155 lbs. | 71.0" | Southpaw | 23 | 12 | 0 | |
| Charles | Bennett | Krazy Horse | 5' 8" | 155 lbs. | -- | Orthodox | 30 | 33 | 2 | |
| Josh | Bennett | 6' 4" | 259 lbs. | -- | Orthodox | 11 | 14 | 0 | ||
| DeAnna | Bennett | The Argentine Assassin | 5' 4" | 125 lbs. | 68.0" | Orthodox | 8 | 3 | 1 | |
| Lance | Benoist | 5' 11" | 170 lbs. | 72.0" | Southpaw | 7 | 2 | 0 | ||
| Joe | Benoit | 5' 9" | 170 lbs. | -- | Orthodox | 11 | 4 | 0 | ||
| Ryan | Benoit | Baby Face | 5' 5" | 125 lbs. | 68.0" | Orthodox | 10 | 8 | 0 | |
| Pat | Benson | 5' 9" | 155 lbs. | -- | 3 | 5 | 3 |