Samantha Stosur defeated Sorana Cirstea 6-3 6-2 in the Los Angeles semi-final on hard. The result followed the form book — Samantha Stosur came in leading the head-to-head 3–1, defending last year's round of 16. Samantha Stosur extended the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-04-25 | Prague | R32 | clay | Samantha Stosur | 3-6 6-4 6-2 |
| 2012-02-13 | Doha | R32 | hard | Samantha Stosur | 6-4 7-6(5) |
| 2012-01-16 | Australian Open | R128 | hard | Sorana Cirstea | 7-6(2) 6-3 |
| 2009-05-25 | Roland Garros | QF | clay | Samantha Stosur | 6-1 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
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (197 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Cirstea S.: 8 days rest · 3 matches (14d). Higher means fresher. About