Ekaterina Yashina defeated Bermet Duvanaeva 6-0 6-4 in the Astana 25K round of 16 on hard. The result followed the form book — Ekaterina Yashina came in leading the head-to-head 2–1. Ekaterina Yashina extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-12-26 | Tyumen 50K | R32 | hard | Ekaterina Yashina | 7-5 6-3 |
| 2011-10-17 | Almaty 10K | QF | hard | Bermet Duvanaeva | 6-3 6-1 |
| 2011-05-02 | Bukhara 25K | Q16 | hard | Ekaterina Yashina | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.