Aleksandrina Naydenova defeated Elitsa Kostova 6-2 6-2 in the Bad Gastein q32 on clay. The upset overturned the form book — Elitsa Kostova came in leading the head-to-head 1–0. Aleksandrina Naydenova claimed a first win over Elitsa Kostova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-09-02 | Alphen A D Rijn 25K | R16 | clay | Elitsa Kostova | 7-5 6-2 |
Averages over each player's completed matches in the selected window (104 vs 200). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About