| event | round | table | player one | result | player two |
| Grand Prix Kitakyushu 2007 | 12 | 23 | Mitamura, Kazuya (1928) | Lost 1-2 | Nakano, Yoshitaka (1801) |
| Pro Tour Kuala Lumpur 2008 | 11 | 44 | Mitamura, Kazuya (1966) | Won 2-0 | Nakano, Yoshitaka (1972) |
| Grand Prix Kobe 2009 | 11 | 41 | Mitamura, Kazuya (1902) | Won 2-1 | Nakano, Yoshitaka (2053) |