
Polona Hercog defeated Madison Keys 6-2 6-4 in the Wimbledon round of 64 on grass. The upset overturned the form book — Madison Keys came in ranked #23, defending last year's round of 32. Polona Hercog extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-07-01 | Wimbledon | R64 | grass | Polona Hercog | 6-2 6-4 |
| 2019-05-13 | Rome | R64 | clay | Madison Keys | 6-4 7-6 |
Averages over each player's completed matches in the selected window (175 vs 200). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About