Sabine Lisicki defeated Simona Halep 6-1 6-2 in the Stanford round of 32 on hard. The upset overturned the form book — Simona Halep came in leading the head-to-head 4–0, but Sabine Lisicki had been the form player, winning 2 of their last 4 on hard. Sabine Lisicki claimed a first win over Simona Halep in five meetings, narrowing the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-08-31 | US Open | R16 | hard | Simona Halep | 6-7(6) 7-5 6-2 |
| 2014-06-23 | Wimbledon | QF | grass | Simona Halep | 6-4 6-0 |
| 2014-05-05 | Madrid | R16 | clay | Simona Halep | 5-7 6-3 6-2 |
| 2013-03-18 | Miami | R128 | hard | Simona Halep | 6-2 3-6 7-5 |
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 (200 vs 197). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About