Petra Kvitova defeated Vera Zvonareva 6-1 6-4 in the Madrid round of 16 on clay. The upset overturned the form book — Vera Zvonareva came in leading the head-to-head 4–2, defending last year's round of 32. Petra Kvitova narrowed the head-to-head to 4–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-05-10 | Rome | R32 | clay | Vera Zvonareva | 6-4 3-6 6-4 |
| 2011-10-24 | WTA Championships | RR | hard | Petra Kvitova | 6-2 6-4 |
| 2011-09-26 | Tokyo | SF | hard | Vera Zvonareva | 7-6(2) 6-0 |
| 2011-01-17 | Australian Open | QF | hard | Vera Zvonareva | 6-2 6-4 |
| 2010-05-03 | Rome | R64 | clay | Petra Kvitova | 6-4 6-0 |
| 2009-03-09 | Indian Wells | R32 | hard | Vera Zvonareva | 6-3 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 199). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About