Katerina Siniakova defeated Kiki Bertens 6-4 6-3 in the Beijing round of 16 on hard. The upset overturned the form book — Kiki Bertens came in leading the head-to-head 2–0, defending last year's round of 64. Katerina Siniakova claimed a first win over Kiki Bertens in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2020-09-28 | Roland Garros | R32 | clay | Kiki Bertens | 6-2 6-2 |
| 2019-05-06 | Madrid | R64 | clay | Kiki Bertens | 6-3 6-2 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (200 vs 179). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Siniakova K.: 12 days rest · 2 matches (14d). Higher means fresher. About