| event | round | table | player one | result | player two |
| Grand Prix Fukuoka 2002 | 3 | 138 | Yamada, Tsutomu (1549) | Won 2-1 | Asahara, Akira (1661) |
| Grand Prix Bangkok 2003 | 11 | 12 | Yamada, Tsutomu (1663) | Won 2-0 | Asahara, Akira (1941) |
| Grand Prix Hong Kong 2004 | 5 | 38 | Yamada, Tsutomu (1649) | Lost 0-0 | Asahara, Akira (1878) |
| Grand Prix Singapore 2005 | 8 | 9 | Yamada, Tsutomu (1686) | Lost 1-2 | Asahara, Akira (1920) |