Kiki Bertens defeated Petra Kvitova 3-6 6-4 6-2 in the Cincinnati semi-final on hard. The upset overturned the form book — Petra Kvitova came in leading the head-to-head 3–2, defending last year's round of 32. Kiki Bertens narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-05-06 | Madrid | QF | clay | Kiki Bertens | 6-2 6-3 |
| 2019-04-22 | Stuttgart | SF | clay | Petra Kvitova | 7-6(3) 3-6 6-1 |
| 2018-08-06 | Montreal | R16 | hard | Kiki Bertens | 6-3 6-2 |
| 2018-05-07 | Madrid | F | clay | Petra Kvitova | 7-6(6) 4-6 6-3 |
| 2015-06-29 | Wimbledon | R128 | grass | Petra Kvitova | 6-1 6-0 |
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 (179 vs 199). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About