Petra Kvitova defeated Alexandra Dulgheru 7-5 3-6 6-4 in the Sydney round of 16 on hard. The upset overturned the form book — Alexandra Dulgheru came in defending last year's round of 32. Petra Kvitova extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-08-29 | US Open | R128 | hard | Alexandra Dulgheru | 7-6(3) 6-3 |
| 2011-05-02 | Madrid | R64 | clay | Petra Kvitova | 6-4 6-1 |
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 (199 vs 125). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About