| event | round | table | player one | result | player two |
| Pro Tour Osaka 2002 | 3 | 10 | Siron, Geoffrey (1712) | Won 2-1 | Karsten, Frank (1908) |
| Pro Tour Columbus 2004 | 7 | 12 | Siron, Geoffrey (1879) | Won 2-0 | Karsten, Frank (1966) |
| Pro Tour Los Angeles 2005 | 16 | 27 | Siron, Geoffrey (1915) | ID | Karsten, Frank (2020) |
| Pro Tour Valencia 2007 | 13 | 8 | Siron, Geoffrey (1864) | Won 2-0 | Karsten, Frank (2086) |