| event | round | table | player one | result | player two |
| Grand Prix Yokohama 2003 | 11 | 95 | Saito, Tomoharu (1695) | Won 2-0 | Hirosawa, Yuuta (1678) |
| Grand Prix Matsuyama 2005 | 8 | 22 | Saito, Tomoharu (1843) | Won 2-0 | Hirosawa, Yuuta (1742) |
| Grand Prix Hiroshima 2006 | 5 | 20 | Saito, Tomoharu (1791) | Won 2-0 | Hirosawa, Yuuta (1826) |
| Grand Prix Singapore 2007 | 6 | 6 | Saito, Tomoharu (2010) | Won 1-0 | Hirosawa, Yuuta (1865) |
| Grand Prix Bangkok 2007 | 8 | 16 | Saito, Tomoharu (1974) | Lost 0-2 | Hirosawa, Yuuta (1865) |