Lucie Hradecka defeated Sara Errani 6-2 6-4 in the Charleston quarter-final on clay. The upset overturned the form book — Sara Errani came in defending last year's quarter-final. Lucie Hradecka extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-02-23 | Acapulco | R32 | hard | Sara Errani | 6-1 6-3 |
| 2011-04-25 | Barcelona | SF | clay | Lucie Hradecka | 6-1 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 (103 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About