| event | round | table | player one | result | player two |
| Grand Prix Shizuoka 2001 | 1 | 94 | Iwai, Tsuyoshi (1621) | Won 2-0 | Taru, Genki (1524) |
| Grand Prix Hiroshima 2003 | 12 | 28 | Iwai, Tsuyoshi (1677) | Won 2-1 | Taru, Genki (1671) |
| Grand Prix Nagoya 2004 | 9 | 80 | Iwai, Tsuyoshi (1689) | Won 2-0 | Taru, Genki (1643) |