| event | round | table | player one | result | player two |
| Grand Prix Utsunomiya 2002 | 2 | 165 | Mukuno, Yuuji (1529) | Won 2-1 | Yun, Suhan (1626) |
| Grand Prix Hiroshima 2003 | 11 | 23 | Mukuno, Yuuji (1610) | Lost 0-2 | Yun, Suhan (1611) |
| Grand Prix Nagoya 2004 | 6 | 247 | Mukuno, Yuuji (1652) | Lost 1-2 | Yun, Suhan (1621) |