Petra Martic defeated Polona Hercog 6-2 6-3 in the Bogota round of 16 on clay. The upset overturned the form book — Polona Hercog came in ranked #234, defending last year's round of 32. Petra Martic extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-05-30 | Bol | R32 | clay | Polona Hercog | 6-2 4-6 6-1 |
| 2009-09-07 | Biella 100K | SF | clay | Petra Martic | 7-5 6-3 |
Averages over each player's completed matches in the selected window (200 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