| event | round | table | player one | result | player two |
| Grand Prix Kobe 2008 | 13 | 3 | Ikeda, Tsuyoshi (1828) | Lost 1-2 | Shimizu, Naoki (1837) |
| Pro Tour Austin 2009 | S | Ikeda, Tsuyoshi (2121) | Won 3-1 | Shimizu, Naoki (1962) | |
| Grand Prix Kitakyushu 2009 | 12 | 13 | Ikeda, Tsuyoshi (2107) | Lost 0-2 | Shimizu, Naoki (1950) |