event | round | table | player one | result | player two |
Grand Prix Hiroshima 2006 | 6 | 19 | Ishihara, Takashi (1648) | Won 2-1 | Ikawa, Yoshihiko (1536) |
Grand Prix Hiroshima 2006 | 10 | 16 | Ishihara, Takashi (1661) | Lost 1-2 | Ikawa, Yoshihiko (1579) |
Grand Prix Yokohama 2010 | 9 | 12 | Ishihara, Takashi (1683) | Won 2-0 | Ikawa, Yoshihiko (1835) |