| event | round | table | player one | result | player two |
| Grand Prix Fukuoka 2002 | 9 | 2 | Shiozu, Ryouma (1874) | Lost 1-2 | Fujita, Tsuyoshi (1867) |
| Grand Prix Shizuoka 2003 | 7 | 26 | Shiozu, Ryouma (1899) | Won 2-0 | Fujita, Tsuyoshi (1978) |
| 2005 World Championship | 9 | 137 | Shiozu, Ryouma (1814) | Won 2-1 | Fujita, Tsuyoshi (1948) |
| Grand Prix Hiroshima 2006 | 9 | 27 | Shiozu, Ryouma (1861) | Lost 0-2 | Fujita, Tsuyoshi (1782) |
| Grand Prix Kitakyushu 2007 | 7 | 3 | Shiozu, Ryouma (1786) | Won 2-0 | Fujita, Tsuyoshi (1807) |