| event | round | table | player one | result | player two |
| Pro Tour San Diego 2004 | 15 | 25 | Asahara, Akira (1924) | Lost 0-2 | Ikeda, Tsuyoshi (1855) |
| Grand Prix Kitakyushu 2005 | 9 | 5 | Asahara, Akira (2060) | Won 2-0 | Ikeda, Tsuyoshi (1844) |
| Grand Prix Yamagata 2006 | 8 | 16 | Asahara, Akira (2036) | ID | Ikeda, Tsuyoshi (1928) |
| 2008 World Championship | 12 | 26 | Asahara, Akira (2040) | Lost 1-2 | Ikeda, Tsuyoshi (1918) |