Sara Errani defeated Patty Schnyder 7-5 6-2 in the US Open round of 64 on hard. The upset overturned the form book — Patty Schnyder came in leading the head-to-head 1–0, defending last year's quarter-final. Sara Errani claimed a first win over Patty Schnyder in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-05-11 | Madrid | R64 | clay | Patty Schnyder | 6-2 6-3 |
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 (200 vs 122). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About