Tereza Martincova defeated Ekaterina Alexandrova 6-3 3-6 6-0 in the Kazan 50K round of 16 on hard. The upset overturned the form book — Ekaterina Alexandrova came in ranked #28.
Martincova T. came through in three sets.
Tereza Martincova beat Ekaterina Alexandrova 6-3 3-6 6-0. Umpiry, "Tereza Martincova vs Ekaterina Alexandrova — Kazan 50K Round of 16", https://umpiry.com/match/2013-08-26/alexandrova-vs-martincova-kazan-50k-r16?utm_source=cite (as of 26 August 2013).