event | round | table | player one | result | player two |
Grand Prix Kobe 2009 | 6 | 5 | Ootsuka, Koutarou (2082) | Won 2-1 | Asahara, Akira (2005) |
Grand Prix Kobe 2012 | 8 | 2 | Ootsuka, Koutarou (1901) | Lost 1-2 | Asahara, Akira (2049) |
Grand Prix Tokyo 2016 | 6 | 598 | Ootsuka, Koutarou (1817) | Won 2-0 | Asahara, Akira (1908) |