Johanna Konta defeated Simona Halep 6-7 7-6 6-4 in the Wimbledon quarter-final on grass. The upset overturned the form book — Simona Halep came in leading the head-to-head 4–2, defending last year's quarter-final. Johanna Konta narrowed the head-to-head to 4–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-05-06 | Madrid | R32 | clay | Simona Halep | 7-5 6-1 |
| 2017-08-14 | Cincinnati | QF | hard | Simona Halep | 6-4 7-6(1) |
| 2017-04-22 | Fed Cup WG2 R1: ROU vs GBR | RR | clay | Simona Halep | 6-1 6-3 |
| 2017-03-20 | Miami | QF | hard | Johanna Konta | 3-6 7-6(7) 6-2 |
| 2015-09-28 | Wuhan | R16 | hard | Johanna Konta | 6-3 3-6 7-5 |
| 2014-02-07 | Fed Cup G1 RR: GBR vs ROU | RR | hard | Simona Halep | 6-1 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 197). ATP, WTA & Challenger.