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