| event | round | table | player one | result | player two |
| 2004 World Championship | 16 | 38 | Karsten, Frank (1954) | Won 2-0 | Saito, Tomoharu (1839) |
| Pro Tour London 2005 | 6 | 93 | Karsten, Frank (1917) | Won 2-1 | Saito, Tomoharu (1886) |
| Pro Tour Berlin 2008 | 12 | 8 | Karsten, Frank (1968) | Lost 0-2 | Saito, Tomoharu (1994) |
| Pro Tour Honolulu 2009 | 13 | 31 | Karsten, Frank (2042) | Lost 0-2 | Saito, Tomoharu (2143) |