| First | Last | Nickname | Ht. | Wt. | Reach | Stance | W | L | D | Belt |
|---|---|---|---|---|---|---|---|---|---|---|
| Amir | Aliakbari | 6' 3" | 250 lbs. | -- | 10 | 1 | 0 | |||
| Sultan | Aliev | 5' 11" | 170 lbs. | 74.0" | Orthodox | 15 | 3 | 0 | ||
| John | Allan | 6' 1" | 205 lbs. | -- | Orthodox | 12 | 4 | 0 | ||
| George | Allen | 6' 2" | 205 lbs. | -- | Open Stance | 13 | 19 | 2 | ||
| Arnold | Allen | Almighty | 5' 8" | 145 lbs. | 70.0" | Southpaw | 14 | 1 | 0 | |
| Benny | Alloway | Blanco | 5' 11" | 170 lbs. | 75.0" | Orthodox | 13 | 6 | 0 | |
| Ricardo | Almeida | Big Dog | 6' 0" | 170 lbs. | 74.0" | Orthodox | 13 | 5 | 0 | |
| Magno | Almeida | 6' 0" | 155 lbs. | -- | 9 | 3 | 0 | |||
| Thomas | Almeida | Thominhas | 5' 7" | 135 lbs. | 70.0" | Southpaw | 22 | 3 | 0 | |
| Ericka | Almeida | 5' 6" | 115 lbs. | 68.0" | 7 | 2 | 0 | |||
| Estefani | Almeida | 5' 4" | 125 lbs. | -- | Orthodox | 7 | 2 | 0 | ||
| Mauricio | Alonso | 6' 2" | 170 lbs. | -- | 13 | 7 | 0 | |||
| Rico | Altamirano | 5' 10" | 170 lbs. | -- | 3 | 2 | 0 | |||
| Mike | Altman | 5' 10" | 185 lbs. | -- | Orthodox | 1 | 4 | 0 | ||
| Sean | Alvarez | 6' 0" | 235 lbs. | -- | Orthodox | 4 | 3 | 0 | ||
| Eddie | Alvarez | The Underground King | 5' 9" | 155 lbs. | 69.0" | Orthodox | 29 | 6 | 0 | |
| Jaime | Alvarez | 5' 8" | 125 lbs. | 69.0" | Orthodox | 6 | 1 | 0 | ||
| Joel | Alvarez | El Fenomeno | 6' 3" | 155 lbs. | 77.0" | Orthodox | 15 | 2 | 0 | |
| Thiago | Alves | Pitbull | 5' 9" | 170 lbs. | 70.0" | Orthodox | 28 | 13 | 0 | |
| Anthony | Alves | -- | -- | -- | 1 | 3 | 0 | |||
| Amilcar | Alves | 6' 0" | 170 lbs. | -- | Southpaw | 11 | 4 | 0 | ||
| Warlley | Alves | 5' 11" | 170 lbs. | 72.0" | Orthodox | 13 | 3 | 0 | ||
| Vinicius | Moreira | Mamute | 6' 4" | 205 lbs. | -- | Orthodox | 9 | 2 | 0 | |
| Sam | Alvey | Smile'N | 6' 2" | 205 lbs. | 75.0" | Southpaw | 33 | 12 | 0 |