Simona Halep defeated Kiki Bertens 7-5 6-1 in the Rome semi-final on clay. The upset overturned the form book — Kiki Bertens came in leading the head-to-head 3–1, defending last year's round of 64. Simona Halep narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-05-06 | Madrid | F | clay | Kiki Bertens | 6-4 6-4 |
| 2018-08-13 | Cincinnati | F | hard | Kiki Bertens | 2-6 7-6(6) 6-2 |
| 2016-06-27 | Wimbledon | R32 | grass | Simona Halep | 6-4 6-3 |
| 2012-04-23 | Fes | SF | clay | Kiki Bertens | 6-3 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
Averages over each player's completed matches in the selected window (198 vs 198). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About