event | round | table | player one | result | player two |
Grand Prix Kitakyushu 2005 | 7 | 3 | Arita, Ryuichi (1831) | Lost 0-2 | Morita, Masahiko (2081) |
Grand Prix Hiroshima 2006 | 4 | 10 | Arita, Ryuichi (1749) | Won 2-0 | Morita, Masahiko (1945) |
Grand Prix Kitakyushu 2007 | 11 | 22 | Arita, Ryuichi (1816) | Lost 0-2 | Morita, Masahiko (2112) |