
Naomi Osaka defeated Simona Halep 6-3 6-0 in the Indian Wells semi-final on hard. The upset overturned the form book — Simona Halep came in leading the head-to-head 4–0, defending last year's round of 32. Naomi Osaka claimed a first win over Simona Halep in five meetings, narrowing the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-05-14 | Rome | R32 | clay | Simona Halep | 6-1 6-0 |
| 2018-01-15 | Australian Open | R16 | hard | Simona Halep | 6-3 6-2 |
| 2017-03-20 | Miami | R64 | hard | Simona Halep | 6-4 2-6 6-3 |
| 2016-05-23 | Roland Garros | R32 | clay | Simona Halep | 4-6 6-2 6-3 |
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 (196 vs 197). ATP, WTA & Challenger.