| event | round | table | player one | result | player two |
| Grand Prix Matsuyama 2005 | 14 | 8 | Morita, Masahiko (1958) | Won 2-1 | Ishikawa, Masayo (1563) |
| Grand Prix Hiroshima 2006 | 5 | 90 | Morita, Masahiko (1923) | Lost 1-2 | Ishikawa, Masayo (1550) |
| Pro Tour Kyoto 2009 | 9 | 78 | Morita, Masahiko (2067) | Won 2-1 | Ishikawa, Masayo (1829) |