Nikol Hristova defeated Isabella Shinikova 3-6 7-6 6-2 in the Sandanski 10K round of 32 on clay. The upset overturned the form book — Isabella Shinikova came in leading the head-to-head 1–0. Nikol Hristova claimed a first win over Isabella Shinikova in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-10-04 | Dobrich 10K | QF | clay | Isabella Shinikova | 6-2 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.