Barbara Sobaszkiewicz defeated Tereza Smitkova 6-3 6-3 in the Bol 10K round of 16 on clay. The upset overturned the form book — Tereza Smitkova came in leading the head-to-head 1–0. Barbara Sobaszkiewicz claimed a first win over Tereza Smitkova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-06-06 | Zlin 50K | Q32 | clay | Tereza Smitkova | 6-4 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.