Kaia Kanepi defeated Simona Halep 6-2 6-4 in the US Open round of 128 on hard. The upset overturned the form book — Simona Halep came in leading the head-to-head 2–0, defending last year's round of 128, but Kaia Kanepi had been the form player, winning 2 of their last 7 on hard. Kaia Kanepi claimed a first win over Simona Halep in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-01-14 | Australian Open | R128 | hard | Simona Halep | 6-7(2) 6-4 6-2 |
| 2014-02-10 | Doha | R32 | hard | Simona Halep | 6-4 3-6 7-6(5) |
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 (174 vs 198). ATP, WTA & Challenger.