, 4-3.
| event |
round |
table |
player one |
result |
player two |
| 2001 European Championship | 5 | 40 | Karsten, Frank (1781) | Won 2-0 | Summersberger, Helmut (1694) |
| 2001 World Championship | 4 | 24 | Karsten, Frank (1864) | Won 2-0 | Summersberger, Helmut (1624) |
| Grand Prix Antwerp 2002 | 4 | 5 | Karsten, Frank (1786) | Won 2-1 | Summersberger, Helmut (1804) |
| 2002 European Championship | 5 | 60 | Karsten, Frank (1809) | Lost 1-2 | Summersberger, Helmut (1701) |
| Grand Prix Munich 2003 | 7 | 18 | Karsten, Frank (1844) | Lost 0-2 | Summersberger, Helmut (1883) |
| Grand Prix Cardiff 2006 | 6 | 69 | Karsten, Frank (2045) | Won 2-1 | Summersberger, Helmut (2000) |
| Pro Tour Geneva 2007 | 4 | 33 | Karsten, Frank (1868) | Lost 1-2 | Summersberger, Helmut (1895) |