| event | round | table | player one | result | player two |
| Grand Prix Hiroshima 2003 | 11 | 14 | Arita, Ryuichi (1678) | Lost 0-2 | Asahara, Akira (1888) |
| Grand Prix Niigata 2005 | 6 | 6 | Arita, Ryuichi (1690) | Won 2-0 | Asahara, Akira (2022) |
| Grand Prix Kitakyushu 2005 | 8 | 9 | Arita, Ryuichi (1818) | Lost 1-2 | Asahara, Akira (2046) |
| Grand Prix Kitakyushu 2007 | 5 | 8 | Arita, Ryuichi (1824) | Lost 1-2 | Asahara, Akira (1969) |