| event | round | table | player one | result | player two |
| 2005 World Championship | 3 | 8 | Osawa, Takuya (1892) | Lost 1-2 | Nakamura, Shuhei (1923) |
| Pro Tour Prague 2006 | S | Osawa, Takuya (1992) | Won 3-1 | Nakamura, Shuhei (2079) | |
| Grand Prix Sydney 2006 | 5 | 10 | Osawa, Takuya (1969) | Won 2-0 | Nakamura, Shuhei (2172) |
| Grand Prix Yamagata 2006 | 5 | 34 | Osawa, Takuya (1953) | Lost 1-2 | Nakamura, Shuhei (1984) |
| 2006 World Championship | 6 | 68 | Osawa, Takuya (1932) | Lost 0-2 | Nakamura, Shuhei (2038) |
| Grand Prix Bangkok 2007 | 6 | 52 | Osawa, Takuya (1895) | Won 2-1 | Nakamura, Shuhei (1961) |
| Pro Tour Shadows over Innistrad | 15 | 25 | Osawa, Takuya (1989) | Won 2-1 | Nakamura, Shuhei (2024) |