event | round | table | player one | result | player two |
Grand Prix Kitakyushu 2007 | 8 | 2 | Iwasaki, Yuusuke (1746) | Won 2-0 | Ikawa, Yoshihiko (1636) |
Grand Prix Yokohama 2012 | 14 | 33 | Iwasaki, Yuusuke (1909) | Lost 0-2 | Ikawa, Yoshihiko (1840) |
Grand Prix Yokohama 2013 | 12 | 111 | Iwasaki, Yuusuke (1788) | Lost 0-2 | Ikawa, Yoshihiko (1796) |