| event | round | table | player one | result | player two |
| 2006 World Championship | 13 | 43 | Osawa, Takuya (1934) | Lost 0-2 | Tsumura, Kenji (1990) |
| Pro Tour Geneva 2007 | 8 | 39 | Osawa, Takuya (2020) | Won 2-1 | Tsumura, Kenji (2107) |
| Pro Tour Geneva 2007 | 13 | 10 | Osawa, Takuya (2056) | ID | Tsumura, Kenji (2145) |