| First | Last | Nickname | Ht. | Wt. | Reach | Stance | W | L | D | Belt |
|---|---|---|---|---|---|---|---|---|---|---|
| Al | Iaquinta | Raging | 5' 9" | 155 lbs. | 70.0" | Orthodox | 13 | 3 | 1 | |
| Minoki | Ichihara | 5' 7" | 178 lbs. | -- | Orthodox | 0 | 1 | 0 | ||
| Valeri | Ignatov | 5' 9" | 170 lbs. | -- | Orthodox | 1 | 2 | 0 | ||
| Sergey | Ignatov | 5' 9" | 210 lbs. | -- | Orthodox | 0 | 1 | 0 | ||
| Fabiano | Iha | 5' 8" | 155 lbs. | -- | Orthodox | 9 | 5 | 0 | ||
| Seichi | Ikemoto | 5' 11" | 168 lbs. | -- | Orthodox | 20 | 17 | 5 | ||
| Mikhail | Iloukhine | 5' 9" | 205 lbs. | -- | Orthodox | 30 | 11 | 1 | ||
| Yusuke | Imamura | 5' 8" | 220 lbs. | -- | Orthodox | 2 | 6 | 0 | ||
| Masakazu | Imanari | 5' 4" | 139 lbs. | -- | Southpaw | 24 | 9 | 2 | ||
| Brad | Imes | Hillbilly Heartthrob | 6' 7" | 265 lbs. | -- | Orthodox | 13 | 7 | 0 | |
| Chris | Indich | The Savage | 5' 10" | 170 lbs. | 73.0" | 5 | 3 | 0 | ||
| Chris | Inman | -- | -- | -- | 0 | 0 | 0 | |||
| Guto | Inocente | 6' 3" | 205 lbs. | 77.0" | Orthodox | 6 | 4 | 0 | ||
| Enson | Inoue | Yamato Damashii | 5' 10" | 210 lbs. | -- | Orthodox | 12 | 8 | 0 | |
| Egan | Inoue | 5' 9" | 190 lbs. | -- | Southpaw | 13 | 8 | 0 | ||
| Katsuya | Inoue | 5' 9" | 168 lbs. | -- | Southpaw | 19 | 9 | 4 | ||
| Takeshi | Inoue | Lion | 5' 8" | 145 lbs. | -- | 20 | 5 | 0 | ||
| Naoki | Inoue | 5' 9" | 125 lbs. | 71.0" | Orthodox | 11 | 0 | 0 | ||
| Jorge | Interiano | 6' 1" | 205 lbs. | -- | 3 | 3 | 0 | |||
| Jason | Ireland | The Irish Tornado | 5' 9" | 161 lbs. | -- | Southpaw | 18 | 8 | 1 | |
| James | Irvin | The Sandman | 6' 2" | 205 lbs. | 75.0" | Orthodox | 15 | 9 | 0 | |
| Eric | Irvin | 5' 8" | 155 lbs. | -- | 9 | 4 | 0 | |||
| Mitsuhiro | Ishida | The Endless Warrior | 5' 6" | 154 lbs. | -- | Southpaw | 20 | 7 | 1 | |
| Teruto | Ishihara | Yashabo | 5' 7" | 145 lbs. | 69.0" | Southpaw | 10 | 3 | 2 | |
| Satoshi | Ishii | 5' 11" | 240 lbs. | -- | Orthodox | 4 | 1 | 1 |