| event | round | table | player one | result | player two |
| Grand Prix Hong Kong 2004 | 5 | 15 | Ikeda, Tsuyoshi (1817) | Won 0-0 | Kaji, Tomohiro (1809) |
| Grand Prix Kitakyushu 2005 | 13 | 28 | Ikeda, Tsuyoshi (1865) | Lost 0-2 | Kaji, Tomohiro (1911) |
| Grand Prix Yamagata 2006 | 11 | 15 | Ikeda, Tsuyoshi (1919) | Lost 1-2 | Kaji, Tomohiro (1944) |