Marina Shamayko defeated Margalita Chakhnashvili 7-6 4-6 7-5 in the Tbilisi 25K round of 32 on clay. The upset overturned the form book — Margalita Chakhnashvili came in leading the head-to-head 2–0, but Marina Shamayko had been the form player, winning 4 of their last 8 on clay. Marina Shamayko claimed a first win over Margalita Chakhnashvili in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-04-04 | Pomezia 10K | R16 | clay | Margalita Chakhnashvili | 6-3 6-2 |
| 2009-03-30 | Latina 50K | R32 | clay | Margalita Chakhnashvili | 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.