Vania King defeated Nadia Petrova 6-1 7-6 in the Madrid round of 64 on clay. The upset overturned the form book — Nadia Petrova came in leading the head-to-head 4–0, defending last year's quarter-final. Vania King claimed a first win over Nadia Petrova in five meetings, narrowing the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-05-07 | Madrid | R64 | clay | Nadia Petrova | 4-6 6-3 6-1 |
| 2010-09-20 | Seoul | R16 | hard | Nadia Petrova | 6-3 6-4 |
| 2010-04-12 | Charleston | R32 | clay | Nadia Petrova | 6-2 6-1 |
| 2007-06-25 | Wimbledon | R128 | grass | Nadia Petrova | 6-0 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 (150 vs 120). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About