Sorana Cirstea defeated Alison Riske 6-3 3-6 7-5 in the US Open round of 128 on hard. The result followed the form book — Sorana Cirstea came in leading the head-to-head 2–1, defending last year's round of 64. Sorana Cirstea extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-08-09 | Montreal | R64 | hard | Sorana Cirstea | 6-3 6-4 |
| 2017-01-20 | Australian Open | R32 | hard | Sorana Cirstea | 6-2 7-6(2) |
| 2007-08-22 | US Open | Q128 | hard | Alison Riske | 6-2 7-6(4) |
Averages over each player's completed matches in the selected window (200 vs 105). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Cirstea S.: 1 day rest · 3 matches, 77 games (7d). Higher means fresher. About
wins 60% of points on serve vs Cirstea S.
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