event | round | table | player one | result | player two |
Grand Prix Hiroshima 2006 | 9 | 21 | Ikeda, Tsuyoshi (1888) | Lost 0-2 | Kitayama, Masaya (1586) |
Grand Prix Taipei 2008 | 5 | 69 | Ikeda, Tsuyoshi (1849) | Won 2-0 | Kitayama, Masaya (1858) |
Grand Prix Kitakyushu 2009 | 6 | 10 | Ikeda, Tsuyoshi (2142) | Lost 1-2 | Kitayama, Masaya (1958) |