Viktoriya Zheleva defeated Kerstin Peckl 6-2 7-6 in the Ruse 10K q16 on clay. The upset overturned the form book — Kerstin Peckl came in leading the head-to-head 1–0. Viktoriya Zheleva claimed a first win over Kerstin Peckl in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-09-23 | Varna 10K | Q32 | clay | Kerstin Peckl | 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.