| event | round | table | player one | result | player two |
| Pro Tour Yokohama 2007 | S | Mitamura, Kazuya (1983) | Won 3-2 | Saito, Tomoharu (2111) | |
| Pro Tour Berlin 2008 | 5 | 13 | Mitamura, Kazuya (1980) | Won 2-1 | Saito, Tomoharu (1971) |
| Grand Prix Melbourne 2009 | 11 | 5 | Mitamura, Kazuya (2005) | Lost 1-2 | Saito, Tomoharu (2004) |
| Grand Prix Bochum 2010 | 4 | 539 | Mitamura, Kazuya (1865) | Won 2-0 | Saito, Tomoharu (1927) |
| Grand Prix Nashville 2010 | 11 | 29 | Mitamura, Kazuya (1941) | Lost 1-2 | Saito, Tomoharu (1891) |