| event | round | table | player one | result | player two |
| Grand Prix Yamagata 2006 | 7 | 97 | Asahara, Akira (2026) | Won 2-1 | Iwasaki, Yuusuke (1595) |
| Pro Tour Austin 2009 | 4 | 14 | Asahara, Akira (1955) | Won 2-1 | Iwasaki, Yuusuke (1814) |
| Grand Prix Hiroshima 2011 | 13 | 3 | Asahara, Akira (1987) | Won 2-0 | Iwasaki, Yuusuke (1949) |
| Grand Prix Nagoya 2019 | 3 | 457 | Asahara, Akira (1994) | Won 2-0 | Iwasaki, Yuusuke (1860) |