Mariya Koryttseva defeated Klara Koukalova 3-6 6-3 7-5 in the Moscow round of 32 on hard. The upset overturned the form book — Klara Koukalova came in leading the head-to-head 2–0, but Mariya Koryttseva had been the form player, winning 3 of their last 7 on hard. Mariya Koryttseva claimed a first win over Klara Koukalova in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-02-15 | Bogota | R16 | clay | Klara Koukalova | 1-6 6-3 6-4 |
| 2008-02-11 | Vina Del Mar | SF | clay | Klara Koukalova | 6-2 7-5 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (15 vs 76). ATP, WTA & Challenger.