Martina Gledacheva defeated Vivienne Vierin 6-0 6-4 in the Todi 10K round of 16 on clay. The upset overturned the form book — Vivienne Vierin came in leading the head-to-head 1–0. Martina Gledacheva claimed a first win over Vivienne Vierin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-10-18 | Dubrovnik 10K | SF | clay | Vivienne Vierin | 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.