| event | round | table | player one | result | player two |
| Grand Prix Yokohama 2012 | 10 | 14 | Washimi, Kazuo (1568) | Won 2-1 | Kumagai, Riku (1629) |
| Grand Prix Kyoto 2019 | 7 | 31 | Washimi, Kazuo (1740) | Lost 0-2 | Kumagai, Riku (2005) |
| Regional Championships Yokohama 2023 | 7 | 13 | Washimi, Kazuo (1737) | ID | Kumagai, Riku (2001) |