| event | round | table | player one | result | player two |
| Grand Prix Sendai 2004 | 3 | 8 | Saito, Tomoharu (1637) | Won 2-0 | Tsumura, Kenji (1542) |
| Grand Prix Niigata 2005 | 7 | 12 | Saito, Tomoharu (1891) | Lost 0-2 | Tsumura, Kenji (1864) |
| Grand Prix Beijing 2005 | 11 | 2 | Saito, Tomoharu (1884) | Won 2-1 | Tsumura, Kenji (2174) |
| Grand Prix Hiroshima 2006 | 8 | 88 | Saito, Tomoharu (1804) | Won 2-1 | Tsumura, Kenji (2212) |
| Grand Prix Singapore 2007 | 8 | 3 | Saito, Tomoharu (2043) | Won 2-1 | Tsumura, Kenji (2244) |