event | round | table | player one | result | player two |
Grand Prix Nagoya 2004 | 14 | 33 | Ishimura, Shintaro (1644) | Won 2-0 | Senba, Kotaro (1652) |
Grand Prix Shizuoka 2008 | 11 | 56 | Ishimura, Shintaro (1837) | Won 2-1 | Senba, Kotaro (1697) |
Grand Prix Sendai 2010 | 7 | 15 | Ishimura, Shintaro (1935) | Won 2-0 | Senba, Kotaro (1654) |