Heather Watson defeated Polona Hercog 6-4 6-4 in the Osaka round of 32 on hard. Heather Watson extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-02-29 | Monterrey | R16 | hard | Heather Watson | 6-2 6-3 |
| 2015-04-27 | Prague | R32 | clay | Polona Hercog | 7-5 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 (199 vs 200). ATP, WTA & Challenger.