Simona Halep defeated Heather Watson 6-3 6-4 in the Miami round of 16 on hard. The result followed the form book — Simona Halep came in leading the head-to-head 3–0, defending last year's semi-final. Simona Halep extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-04-22 | Fed Cup WG2 R1: ROU vs GBR | RR | clay | Simona Halep | 6-4 6-1 |
| 2014-05-26 | Roland Garros | R64 | clay | Simona Halep | 6-2 6-4 |
| 2013-08-26 | US Open | R128 | hard | Simona Halep | 4-6 6-4 6-2 |
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 (197 vs 199). ATP, WTA & Challenger.