event | round | table | player one | result | player two |
Grand Prix Nagoya 2004 | 3 | 87 | Kudo, Koichi (1507) | Lost 0-2 | Aridome, Tomohiro (1599) |
Grand Prix Yamagata 2006 | 9 | 7 | Kudo, Koichi (1709) | Won 2-1 | Aridome, Tomohiro (1898) |
Grand Prix Kobe 2008 | 6 | 195 | Kudo, Koichi (1715) | Won 2-1 | Aridome, Tomohiro (1683) |