event | round | table | player one | result | player two |
2008 World Championship | 7 | 143 | Nakajima, Chikara (1880) | Lost 0-2 | Watanabe, Yuuya (1874) |
Grand Prix Shanghai 2011 | 6 | 94 | Nakajima, Chikara (1898) | Lost 0-2 | Watanabe, Yuuya (1959) |
Grand Prix Shizuoka 2013 | 5 | 530 | Nakajima, Chikara (1932) | Draw 1-1 | Watanabe, Yuuya (1982) |