event | round | table | player one | result | player two |
Grand Prix Shizuoka 2013 | 11 | 35 | Oiso, Kenji (1589) | Lost 1-2 | Saito, Tomoharu (1798) |
Grand Prix Shizuoka 2018 (legacy) | 15 | 13 | Oiso, Kenji (1819) | Lost 1-2 | Saito, Tomoharu (1958) |
Grand Prix Chiba 2019 | 9 | 13 | Oiso, Kenji (1905) | Lost 0-2 | Saito, Tomoharu (1937) |