| event | round | table | player one | result | player two |
| Grand Prix Sapporo 2000 | 13 | 16 | Higaki, Takao (1540) | Won 2-0 | Ishida, Itaru (1535) |
| Grand Prix Kyoto 2000 | 5 | 3 | Higaki, Takao (1592) | Won 2-0 | Ishida, Itaru (1554) |
| Grand Prix Fukuoka 2002 | 7 | 2 | Higaki, Takao (1808) | Won 2-0 | Ishida, Itaru (1885) |
| Grand Prix Hiroshima 2003 | 8 | 9 | Higaki, Takao (1852) | Won 2-1 | Ishida, Itaru (1889) |