event | round | table | player one | result | player two |
Grand Prix Bangkok 2007 | 12 | 2 | Nakajima, Chikara (1677) | Won 2-0 | Mitamura, Kazuya (1914) |
Grand Prix Okayama 2008 | S | Nakajima, Chikara (1831) | Lost 0-2 | Mitamura, Kazuya (2036) | |
Grand Prix Singapore 2011 | 6 | 20 | Nakajima, Chikara (1794) | Won 2-0 | Mitamura, Kazuya (1950) |