Sandra Kloesel defeated Andrea Petkovic 7-6 6-4 in the Vaihingen 25K round of 32 on clay. The upset overturned the form book — Andrea Petkovic came in leading the head-to-head 1–0. Sandra Kloesel claimed a first win over Andrea Petkovic in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-07-20 | Bad Gastein | R32 | clay | Andrea Petkovic | 6-4 6-3 |
Averages over each player's completed matches in the selected window (22 vs 200). 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