| First | Last | Nickname | Ht. | Wt. | Reach | Stance | W | L | D | Belt |
|---|---|---|---|---|---|---|---|---|---|---|
| Yves | Jabouin | Tiger | 5' 7" | 135 lbs. | 68.0" | Orthodox | 20 | 11 | 0 | |
| Kevin | Jackson | 5' 10" | 199 lbs. | -- | Switch | 4 | 2 | 0 | ||
| Eugene | Jackson | The Wolf | 5' 8" | 185 lbs. | -- | Orthodox | 15 | 9 | 1 | |
| Quinton | Jackson | Rampage | 6' 1" | 205 lbs. | 73.0" | Orthodox | 37 | 12 | 0 | |
| Jeremy | Jackson | Scorpion | 5' 10" | 170 lbs. | -- | Orthodox | 9 | 5 | 0 | |
| Damon | Jackson | The Leech | 5' 11" | 155 lbs. | 71.0" | Switch | 23 | 8 | 1 | |
| Kenyon | Jackson | 6' 0" | 185 lbs. | -- | 4 | 3 | 0 | |||
| Mike | Jackson | The Truth | 6' 2" | 170 lbs. | 74.0" | Orthodox | 1 | 2 | 0 | |
| Jason | Jackson | Jah-Son | 6' 1" | 170 lbs. | 78.0" | Orthodox | 7 | 2 | 0 | |
| Montel | Jackson | Quik | 5' 10" | 135 lbs. | 75.0" | Southpaw | 15 | 3 | 0 | |
| Eric | Jacob | -- | 155 lbs. | -- | 1 | 9 | 0 | |||
| Richard | Jacobi | 6' 4" | 260 lbs. | 75.0" | Orthodox | 6 | 1 | 1 | ||
| Dustin | Jacoby | The Hanyak | 6' 3" | 205 lbs. | 76.0" | Orthodox | 21 | 9 | 1 | |
| Justin | James | 5' 10" | 155 lbs. | -- | Orthodox | 13 | 7 | 0 | ||
| Nate | James | 6' 0" | 185 lbs. | -- | 14 | 8 | 1 | |||
| Virna | Jandiroba | Carcara | 5' 3" | 115 lbs. | 64.0" | Orthodox | 22 | 4 | 0 | |
| Ryan | Janes | 6' 3" | 185 lbs. | 76.0" | Orthodox | 10 | 3 | 0 | ||
| YunSeong | Jang | 6' 0" | 170 lbs. | 72.0" | Orthodox | 7 | 2 | 0 | ||
| Josh | Janousek | 5' 11" | 185 lbs. | -- | Orthodox | 8 | 1 | 0 | ||
| Dave | Jansen | 5' 9" | 155 lbs. | 73.0" | Orthodox | 20 | 4 | 0 | ||
| Jaime | Jara | El Cucui | 6' 1" | 205 lbs. | -- | Southpaw | 38 | 18 | 0 | |
| Gigo | Jara | The Little Animal | 5' 9" | 145 lbs. | -- | 6 | 9 | 0 | ||
| Keith | Jardine | The Dean of Mean | 6' 2" | 185 lbs. | 76.0" | Orthodox | 17 | 11 | 2 | |
| Brock | Jardine | The Machine | 5' 11" | 170 lbs. | -- | Orthodox | 12 | 6 | 0 | |
| Josh | Jarvis | -- | -- | -- | 1 | 4 | 0 |