Valentyna Ivakhnenko defeated Marina Shamayko 3-6 6-2 6-3 in the StPetersburg 25K round of 16 on clay. The result followed the form book — Valentyna Ivakhnenko came in leading the head-to-head 2–0. Valentyna Ivakhnenko extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-12-26 | Tyumen 50K | R32 | hard | Valentyna Ivakhnenko | 4-6 6-3 6-4 |
| 2011-03-21 | Namangan 25K | R16 | hard | Valentyna Ivakhnenko | 6-1 3-6 6-3 |
Averages over each player's completed matches in the selected window (46 vs 2). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About