| event | round | table | player one | result | player two |
| Grand Prix Utsunomiya 2002 | 8 | 68 | Nakajima, Chikara (1616) | ID | Hirabayashi, Kazuya (1772) |
| Grand Prix Utsunomiya 2002 | 10 | 7 | Nakajima, Chikara (1638) | Won 2-0 | Hirabayashi, Kazuya (1789) |
| Grand Prix Okayama 2004 | 11 | 30 | Nakajima, Chikara (1716) | Lost 1-2 | Hirabayashi, Kazuya (1745) |
| Grand Prix Taipei 2008 | 14 | 5 | Nakajima, Chikara (1864) | ID | Hirabayashi, Kazuya (1904) |