Heather Watson advanced when Sorana Cirstea retired 6-3 0-0 in the Auckland round of 32. Heather Watson extended the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-09-13 | Portoroz | R32 | hard | Sorana Cirstea | 6-1 6-3 |
| 2018-01-08 | Hobart | R32 | hard | Heather Watson | 7-5 6-3 |
| 2014-08-25 | US Open | R128 | hard | Sorana Cirstea | 6-1 6-1 |
| 2014-02-07 | Fed Cup G1 RR: GBR vs ROU | RR | hard | Heather Watson | 6-7(7) 6-1 6-4 |
| 2012-03-19 | Miami | R128 | hard | Heather Watson | 6-3 3-6 7-6(4) |
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 (199 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Watson H.: 18 days rest · Cirstea S.: 9 days rest · 3 matches (14d). Higher means fresher. About