| First | Last | Nickname | Ht. | Wt. | Reach | Stance | W | L | D | Belt |
|---|---|---|---|---|---|---|---|---|---|---|
| Gilbert | Aldana | El Peligro | 6' 1" | 250 lbs. | -- | Orthodox | 6 | 2 | 0 | |
| Irene | Aldana | 5' 9" | 135 lbs. | 68.0" | Orthodox | 14 | 6 | 0 | ||
| Hector | Aldana | 5' 11" | 170 lbs. | 72.0" | Orthodox | 4 | 3 | 0 | ||
| Jose | Alday | Pochito | 5' 7" | 135 lbs. | 68.0" | Orthodox | 14 | 6 | 1 | |
| Jose | Aldo | 5' 7" | 135 lbs. | 70.0" | Orthodox | 31 | 8 | 0 | ||
| JJ | Aldrich | 5' 5" | 125 lbs. | 67.0" | Southpaw | 11 | 5 | 0 | ||
| Irina | Alekseeva | Russian Ronda | 5' 8" | 135 lbs. | -- | 4 | 1 | 0 | ||
| Jim | Alers | The Beast | 5' 9" | 145 lbs. | 71.0" | Orthodox | 13 | 3 | 0 | |
| John | Alessio | The Natural | 5' 10" | 155 lbs. | 72.0" | Orthodox | 35 | 17 | 0 | |
| Houston | Alexander | The Assassin | 6' 0" | 205 lbs. | 72.0" | Orthodox | 17 | 15 | 1 | |
| Kenneth | Alexander | The Machine | 5' 9" | 155 lbs. | -- | Orthodox | 7 | 6 | 0 | |
| Lucas | Alexander | The Lion | 5' 11" | 145 lbs. | 73.0" | Orthodox | 7 | 3 | 0 | |
| Marcio | Alexandre Junior | Lyoto | 6' 0" | 185 lbs. | 75.0" | Southpaw | 17 | 4 | 0 | |
| Olaf | Alfonso | 6' 2" | 170 lbs. | -- | Orthodox | 8 | 12 | 0 | ||
| Pablo | Alfonso | The Hurricane | 5' 8" | 145 lbs. | -- | 9 | 7 | 0 | ||
| Levi | Alford | -- | -- | -- | 1 | 7 | 0 | |||
| Bill | Algeo | Senor Perfecto | 6' 0" | 145 lbs. | 73.0" | Switch | 16 | 7 | 0 | |
| Royce | Alger | 5' 10" | 199 lbs. | -- | Orthodox | 3 | 2 | 0 | ||
| Amir | Aliakbari | 6' 3" | 250 lbs. | -- | 10 | 1 | 0 | |||
| Sultan | Aliev | 5' 11" | 170 lbs. | 74.0" | Orthodox | 15 | 3 | 0 | ||
| Nurullo | Aliev | Tajik Eagle | 5' 10" | 155 lbs. | 72.0" | Orthodox | 7 | 0 | 0 | |
| Ikram | Aliskerov | 6' 0" | 185 lbs. | 76.0" | Southpaw | 13 | 1 | 0 | ||
| Leon | Aliu | The Albanian Lion | 6' 0" | 185 lbs. | 74.0" | Orthodox | 10 | 2 | 0 | |
| John | Allan | 6' 1" | 205 lbs. | 75.0" | Orthodox | 13 | 7 | 0 |