| event | round | table | player one | result | player two |
| Grand Prix Bologna 2005 | 10 | 30 | Karsten, Frank (1970) | Lost 0-2 | Dictus, Mark (1809) |
| Pro Tour Honolulu 2006 | 8 | 99 | Karsten, Frank (2009) | Won 1-0 | Dictus, Mark (1749) |
| Pro Tour Kyoto 2009 | 4 | 75 | Karsten, Frank (2029) | Lost 0-2 | Dictus, Mark (1778) |
| Pro Tour Austin 2009 | 8 | 11 | Karsten, Frank (2039) | Lost 0-2 | Dictus, Mark (1888) |
| Pro Tour San Juan 2010 | 7 | 149 | Karsten, Frank (1809) | Won 2-1 | Dictus, Mark (1781) |