event | round | table | player one | result | player two |
Grand Prix Okayama 2008 | 9 | 7 | Yamamoto, Akimasa (1808) | Won 2-0 | Mihara, Makihito (2074) |
Grand Prix Taipei 2012 | 11 | 38 | Yamamoto, Akimasa (1879) | Lost 0-2 | Mihara, Makihito (2012) |
Grand Prix Taipei 2012 | 14 | 30 | Yamamoto, Akimasa (1892) | Won 2-1 | Mihara, Makihito (2059) |
Grand Prix Taipei 2012 | F | Yamamoto, Akimasa (1949) | Lost 0-2 | Mihara, Makihito (2073) |