Simona Halep defeated Ashleigh Barty 7-5 7-5 in the Madrid quarter-final on clay. The result followed the form book — Simona Halep came in leading the head-to-head 2–1, defending last year's quarter-final. Simona Halep extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-01-07 | Sydney | R16 | hard | Ashleigh Barty | 6-4 6-4 |
| 2018-08-13 | Cincinnati | R16 | hard | Simona Halep | 7-5 6-4 |
| 2018-08-06 | Montreal | SF | hard | Simona Halep | 6-4 6-1 |
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 (172 vs 142). ATP, WTA & Challenger.