| event | round | table | player one | result | player two |
| 2004 World Championship | 17 | 28 | Karsten, Frank (1970) | Lost 0-2 | Oiso, Masashi (1929) |
| Pro Tour Kobe 2006 | 6 | 4 | Karsten, Frank (1927) | Lost 0-2 | Oiso, Masashi (1837) |
| 2007 World Championship | 2 | 52 | Karsten, Frank (2072) | Won 2-1 | Oiso, Masashi (1869) |
| 2008 World Championship | 15 | 4 | Karsten, Frank (2002) | Won 2-1 | Oiso, Masashi (1889) |