Stephanie Vogt defeated Sandra Martinovic 3-6 7-6 6-3 in the Lenzerheide 25K round of 32 on clay. The upset overturned the form book — Sandra Martinovic came in leading the head-to-head 1–0, but Stephanie Vogt had been the form player, winning 6 of their last 9 on clay. Stephanie Vogt claimed a first win over Sandra Martinovic in two meetings, levelling the head-to-head at 1–1.
Vogt S. came through in three sets.
Stephanie Vogt beat Sandra Martinovic 3-6 7-6(2) 6-3. Umpiry, "Stephanie Vogt vs Sandra Martinovic — Lenzerheide 25K Round of 32", https://umpiry.com/match/2011-06-20/martinovic-vs-vogt-lenzerheide-25k-r32?utm_source=cite (as of 20 June 2011).