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