Zeynep Sonmez defeated Anastasia Nefedova 2-6 7-6 6-3 in the W15 Antalya 8 round of 32 on clay. The upset overturned the form book — Anastasia Nefedova came in leading the head-to-head 1–0. Zeynep Sonmez claimed a first win over Anastasia Nefedova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-09-30 | W60 Charleston | Q32 | clay | Anastasia Nefedova | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.