Lenka Wienerova defeated Laura Siegemund 1-6 6-3 6-2 in the Zlin 50K round of 16 on clay. The upset overturned the form book — Laura Siegemund came in leading the head-to-head 1–0, but Lenka Wienerova had been the form player, winning 4 of their last 6 on clay. Lenka Wienerova claimed a first win over Laura Siegemund in two meetings, levelling the head-to-head at 1–1.
Wienerova L. came through in three sets.
Lenka Wienerova beat Laura Siegemund 1-6 6-3 6-2. Umpiry, "Lenka Wienerova vs Laura Siegemund — Zlin 50K Round of 16", https://umpiry.com/match/2011-06-06/siegemund-vs-wienerova-zlin-50k-r16?utm_source=cite (as of 6 June 2011).