event | round | table | player one | result | player two |
Grand Prix Kobe 2009 | 10 | 51 | Hamamoto, Kenji (1728) | Lost 1-2 | Watanabe, Yuuya (1948) |
Grand Prix Kobe 2009 | Q | Hamamoto, Kenji (1743) | Lost 1-2 | Watanabe, Yuuya (1961) | |
Grand Prix Yokohama 2010 | 12 | 43 | Hamamoto, Kenji (1749) | Lost 0-2 | Watanabe, Yuuya (1968) |