, 3-2-1.
| event |
round |
table |
player one |
result |
player two |
| Grand Prix Kyoto 2000 | 12 | 3 | Mori, Katsuhiro (1671) | Won 2-1 | Hirabayashi, Kazuya (1665) |
| Pro Tour Los Angeles 2001 | 14 | 24 | Mori, Katsuhiro (1813) | Lost 1-2 | Hirabayashi, Kazuya (1682) |
| Grand Prix Shizuoka 2001 | 10 | 13 | Mori, Katsuhiro (1903) | Won 2-0 | Hirabayashi, Kazuya (1778) |
| Grand Prix Sendai 2001 | 14 | 5 | Mori, Katsuhiro (1974) | ID | Hirabayashi, Kazuya (1853) |
| Grand Prix Taipei 2002 | 11 | 14 | Mori, Katsuhiro (1909) | Lost 0-2 | Hirabayashi, Kazuya (1751) |
| Grand Prix Sendai 2004 | 3 | 55 | Mori, Katsuhiro (1988) | Won 2-0 | Hirabayashi, Kazuya (1768) |