| event | round | table | player one | result | player two |
| Grand Prix Niigata 2009 | 10 | 11 | Tamura, Ryo (1637) | Won 2-0 | Mori, Katsuhiro (1962) |
| Grand Prix Sendai 2010 | 6 | 5 | Tamura, Ryo (1719) | Lost 0-2 | Mori, Katsuhiro (2183) |
| Grand Prix Kobe 2012 | 11 | 2 | Tamura, Ryo (1833) | Lost 0-2 | Mori, Katsuhiro (1969) |
| Grand Prix Yokohama 2013 | 9 | 915 | Tamura, Ryo (1900) | Won 2-1 | Mori, Katsuhiro (1969) |
| Grand Prix Nagoya 2014 | 8 | 73 | Tamura, Ryo (1922) | Lost 0-2 | Mori, Katsuhiro (1996) |