Sandra Zaniewska defeated Ana Clara Duarte 7-6 1-6 6-1 in the Aschaffenburg 25K round of 32 on clay. The upset overturned the form book — Ana Clara Duarte came in leading the head-to-head 1–0. Sandra Zaniewska claimed a first win over Ana Clara Duarte in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-09-13 | Darwin 25K | R32 | hard | Ana Clara Duarte | 4-6 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.