| First | Last | Nickname | Ht. | Wt. | Reach | Stance | W | L | D | Belt |
|---|---|---|---|---|---|---|---|---|---|---|
| Dong Hyun | Ma | Maestro | 5' 11" | 155 lbs. | 70.0" | Orthodox | 16 | 11 | 3 | |
| Pawan | Maan | 5' 7" | 155 lbs. | 70.0" | Orthodox | 7 | 3 | 1 | ||
| William | Macario | Patolino | 5' 11" | 170 lbs. | 75.0" | Orthodox | 9 | 3 | 0 | |
| Jason | MacDonald | The Athlete | 6' 3" | 185 lbs. | 80.0" | Orthodox | 25 | 16 | 0 | |
| Rob | MacDonald | Maximus | 6' 3" | 205 lbs. | 78.0" | Orthodox | 5 | 4 | 0 | |
| Rory | MacDonald | Red King | 6' 0" | 170 lbs. | 76.0" | Orthodox | 19 | 4 | 0 | |
| Ryan | MacDonald | Main Event | 5' 11" | 135 lbs. | 71.0" | Switch | 10 | 2 | 0 | |
| Clayton | MacFarlane | -- | 170 lbs. | -- | 4 | 1 | 0 | |||
| Ilima | Macfarlane | 5' 4" | 125 lbs. | -- | 6 | 0 | 0 | |||
| Valesca | Machado | Tina Black | 5' 4" | 115 lbs. | 63.0" | Orthodox | 8 | 3 | 0 | |
| Caio | Machado | Bigfoot | 6' 4" | 250 lbs. | 78.0" | Southpaw | 8 | 4 | 1 | |
| Ian | Machado Garry | The Future | 6' 3" | 170 lbs. | 74.0" | Orthodox | 15 | 0 | 0 | |
| Lyoto | Machida | The Dragon | 6' 1" | 185 lbs. | 74.0" | Southpaw | 24 | 8 | 0 | |
| War | Machine | 5' 11" | 170 lbs. | -- | Orthodox | 14 | 5 | 0 | ||
| Anthony | Macias | Mad Dog | 5' 9" | 185 lbs. | -- | Switch | 26 | 18 | 0 | |
| Pauline | Macias | PITA | 5' 4" | 115 lbs. | 64.0" | Southpaw | 4 | 1 | 0 | |
| Reza | Madadi | Mad Dog | 5' 11" | 155 lbs. | 73.0" | Orthodox | 14 | 6 | 0 | |
| Don | Madge | Magic Man | 6' 0" | 155 lbs. | 72.0" | Southpaw | 9 | 3 | 1 | |
| Ryan | Madigan | 6' 0" | 170 lbs. | -- | Orthodox | 5 | 3 | 0 | ||
| Victor | Madrigal | Periquito | 5' 7" | 135 lbs. | 71.0" | Orthodox | 15 | 5 | 0 | |
| Jon | Madsen | 6' 0" | 240 lbs. | 72.0" | Orthodox | 8 | 2 | 0 | ||
| Mark | Madsen | The Olympian | 5' 8" | 155 lbs. | 72.0" | Orthodox | 12 | 2 | 0 | |
| Yoshiro | Maeda | 5' 7" | 139 lbs. | 68.0" | Southpaw | 35 | 16 | 5 | ||
| Leonardo | Mafra | Macarrao | 5' 10" | 155 lbs. | 70.0" | Orthodox | 13 | 4 | 0 | |
| Vinny | Magalhaes | Pezao | 6' 3" | 205 lbs. | 75.0" | Orthodox | 14 | 9 | 0 |