event | round | table | player one | result | player two |
Grand Prix Okayama 2008 | 5 | 87 | Kadooka, Toshiyuki (1714) | Won 2-0 | Tashima, Chihiro (1475) |
Grand Prix Kobe 2011 | 12 | 2 | Kadooka, Toshiyuki (1747) | Won 2-0 | Tashima, Chihiro (1638) |
Grand Prix Kobe 2012 | 6 | 122 | Kadooka, Toshiyuki (1876) | Lost 1-2 | Tashima, Chihiro (1640) |