Annika Beck defeated Kiki Bertens 7-5 3-6 6-4 in the St. Petersburg round of 32 on hard. The upset overturned the form book — Kiki Bertens came in leading the head-to-head 5–0. Annika Beck claimed a first win over Kiki Bertens in six meetings, narrowing the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-05-22 | Nurnberg | R16 | clay | Kiki Bertens | 7-5 6-2 |
| 2017-01-09 | Hobart | R32 | hard | Kiki Bertens | 6-1 6-2 |
| 2016-10-17 | Luxembourg | R32 | hard | Kiki Bertens | 6-4 6-4 |
| 2016-01-11 | Hobart | R16 | hard | Kiki Bertens | 6-3 6-1 |
| 2013-03-04 | Indian Wells | R128 | hard | Kiki Bertens | 3-6 6-4 6-1 |
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 (28 vs 198). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About