| event | round | table | player one | result | player two |
| Grand Prix Tokyo 2016 | 6 | 8 | Usui, Haruki (1849) | Lost 1-2 | Takahashi, Jun (1539) |
| Grand Prix Nagoya 2019 | 9 | 155 | Usui, Haruki (1775) | Won 2-1 | Takahashi, Jun (1783) |
| Regional Championships Yokohama 2023 | 1 | 73 | Usui, Haruki (1899) | Won 2-0 | Takahashi, Jun (1611) |