| event | round | table | player one | result | player two |
| Grand Prix Shizuoka 2008 | 11 | 25 | Yamamoto, Akimasa (1712) | Won 2-0 | Yukuhiro, Ken (1680) |
| Grand Prix Kitakyushu 2009 | 8 | 5 | Yamamoto, Akimasa (1906) | Lost 1-2 | Yukuhiro, Ken (1713) |
| Pro Tour San Juan 2010 | 11 | 37 | Yamamoto, Akimasa (1813) | Won 2-0 | Yukuhiro, Ken (1845) |