| event | round | table | player one | result | player two |
| Grand Prix Hiroshima 2003 | 6 | 82 | Kozakai, Yukio (1527) | Lost 0-2 | Fujita, Osamu (1694) |
| Grand Prix Shizuoka 2003 | 8 | 8 | Kozakai, Yukio (1680) | ID | Fujita, Osamu (1904) |
| Grand Prix Sendai 2004 | 4 | 48 | Kozakai, Yukio (1596) | Lost 1-2 | Fujita, Osamu (1953) |