| event | round | table | player one | result | player two |
| Grand Prix Utsunomiya 2002 | 9 | 4 | Tsumura, Kenji (1587) | Won 2-1 | Tanaka, Hisaya (1601) |
| Grand Prix Niigata 2005 | 8 | 6 | Tsumura, Kenji (1882) | Draw 1-1 | Tanaka, Hisaya (1810) |
| Pro Tour Honolulu 2006 | 4 | 122 | Tsumura, Kenji (2073) | Won 2-1 | Tanaka, Hisaya (1706) |
| Grand Prix Kitakyushu 2007 | 5 | 10 | Tsumura, Kenji (1899) | Won 2-0 | Tanaka, Hisaya (1702) |