Karin Knapp defeated Sandra Kloesel 6-1 7-6 in the Palermo round of 16 on clay. The upset overturned the form book — Sandra Kloesel came in leading the head-to-head 3–0. Karin Knapp claimed a first win over Sandra Kloesel in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-03-19 | Miami | Q64 | hard | Sandra Kloesel | 6-4 7-6(9) |
| 2006-09-04 | Mestre 50K | SF | clay | Sandra Kloesel | 6-4 6-2 |
| 2004-09-13 | Ashland KY 25K | R32 | hard | Sandra Kloesel | 6-4 6-0 |
Averages over each player's completed matches in the selected window (200 vs 13). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About