| event | round | table | player one | result | player two |
| Grand Prix Nagoya 2014 | 3 | 71 | Ozawa, Takeshi (1857) | Lost 1-2 | Segou, Kenji (1540) |
| Grand Prix Kyoto 2017 | 8 | 222 | Ozawa, Takeshi (1831) | Won 2-0 | Segou, Kenji (1673) |
| Regional Championships Yokohama 2023 | 10 | 2 | Ozawa, Takeshi (2007) | Won 2-1 | Segou, Kenji (1958) |
| Regional Championships Yokohama 2023 | S | Ozawa, Takeshi (2043) | Lost 1-2 | Segou, Kenji (1976) |