| First | Last | Nickname | Ht. | Wt. | Reach | Stance | W | L | D | Belt |
|---|---|---|---|---|---|---|---|---|---|---|
| Thomas | Petersen | The Train | 6' 1" | 264 lbs. | 74.0" | Southpaw | 9 | 2 | 0 | |
| Cory | Peterson | LA Giant | 6' 11" | 400 lbs. | -- | Orthodox | 2 | 1 | 0 | |
| Steven | Peterson | Ocho | 5' 10" | 145 lbs. | 70.0" | Orthodox | 19 | 11 | 0 | |
| Vitor | Petrino | 6' 2" | 205 lbs. | 77.0" | Orthodox | 11 | 1 | 0 | ||
| Andre | Petroski | 6' 0" | 185 lbs. | 73.0" | Switch | 12 | 4 | 0 | ||
| Armen | Petrosyan | Superman | 6' 3" | 185 lbs. | 71.0" | Orthodox | 9 | 4 | 0 | |
| Ivana | Petrovic | 5' 8" | 125 lbs. | 70.0" | Southpaw | 7 | 2 | 0 | ||
| Seth | Petruzelli | The Silverback | 6' 0" | 205 lbs. | 76.0" | Orthodox | 14 | 8 | 0 | |
| Peter | Petties | The Joker | 5' 11" | 145 lbs. | 72.0" | Southpaw | 5 | 3 | 0 | |
| Anthony | Pettis | Showtime | 5' 10" | 155 lbs. | 72.0" | Orthodox | 24 | 10 | 0 | |
| Sergio | Pettis | 5' 6" | 125 lbs. | 69.0" | Orthodox | 18 | 5 | 0 | ||
| Forrest | Petz | The Meat Cleaver | 5' 9" | 170 lbs. | 71.0" | Orthodox | 26 | 10 | 0 | |
| Dino | Pezao | -- | 205 lbs. | -- | Orthodox | 1 | 3 | 0 | ||
| Cody | Pfister | The Fist | 5' 10" | 155 lbs. | 73.0" | Orthodox | 13 | 6 | 1 | |
| Nam | Phan | 5' 6" | 135 lbs. | 70.0" | Orthodox | 21 | 17 | 0 | ||
| Constantinos | Philippou | 5' 11" | 185 lbs. | 73.0" | Orthodox | 13 | 5 | 0 | ||
| Wayne | Phillips | -- | 185 lbs. | -- | 7 | 7 | 0 | |||
| Dave | Phillips | The Rockstar | 6' 0" | 185 lbs. | -- | Orthodox | 13 | 7 | 0 | |
| Aaron | Phillips | The Dragon | 5' 9" | 135 lbs. | 71.0" | Southpaw | 12 | 5 | 0 | |
| Elizabeth | Phillips | 5' 6" | 135 lbs. | 65.0" | Orthodox | 6 | 6 | 0 | ||
| John | Phillips | The Welsh Wrecking Machine | 5' 11" | 185 lbs. | 75.0" | Southpaw | 22 | 11 | 0 | |
| Kyler | Phillips | The Matrix | 5' 8" | 135 lbs. | 72.0" | Orthodox | 12 | 3 | 0 | |
| Mario | Piazzon | 5' 9" | 265 lbs. | 73.0" | Orthodox | 8 | 0 | 0 | ||
| Nick | Pica | The Silverback | 5' 10" | 185 lbs. | -- | 5 | 1 | 0 |