Patty Schnyder defeated Rossana De Los Rios 6-4 6-1 in the US Open round of 128 on hard. The result followed the form book — Patty Schnyder came in leading the head-to-head 2–1, defending last year's round of 64. Patty Schnyder extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-07-27 | Istanbul | R32 | clay | Rossana De Los Rios | 7-6(3) 2-6 6-3 |
| 2002-01-06 | Canberra | R32 | hard | Patty Schnyder | 6-4 6-4 |
| 2001-11-05 | Pattaya | SF | hard | Patty Schnyder | 7-5 0-6 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 46). ATP, WTA & Challenger.