Irina Buryachok defeated Margalita Chakhnashvili 6-2 6-3 in the Zlin 50K round of 32 on clay. The upset overturned the form book — Margalita Chakhnashvili came in leading the head-to-head 1–0. Irina Buryachok claimed a first win over Margalita Chakhnashvili in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-09-26 | Telavi 50K | R32 | clay | Margalita Chakhnashvili | 3-6 6-4 7-6(1) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.