Sandra Zahlavova defeated Lenka Wienerova 6-2 6-2 in the Trnava 50K round of 16 on clay. The upset overturned the form book — Lenka Wienerova came in leading the head-to-head 1–0. Sandra Zahlavova claimed a first win over Lenka Wienerova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-02-28 | Monterrey | Q32 | hard | Lenka Wienerova | 3-6 7-6(3) 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.