event | round | table | player one | result | player two |
Grand Prix Nagoya 2004 | 6 | 99 | Arita, Ryuichi (1684) | Won 2-0 | Ishii, Taisuke (1632) |
Grand Prix Kitakyushu 2005 | 12 | 21 | Arita, Ryuichi (1818) | Won 2-1 | Ishii, Taisuke (1801) |
Grand Prix Shizuoka 2008 | 7 | 44 | Arita, Ryuichi (1824) | Won 2-1 | Ishii, Taisuke (1668) |