Caroline Wozniacki defeated Katerina Siniakova 7-5 6-4 in the Beijing round of 16 on hard. The result followed the form book — Caroline Wozniacki came in leading the head-to-head 3–1, defending the title. Caroline Wozniacki extended the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-10-01 | Beijing | QF | hard | Caroline Wozniacki | 6-2 6-2 |
| 2017-07-24 | Bastad | F | clay | Katerina Siniakova | 6-3 6-4 |
| 2017-03-06 | Indian Wells | R32 | hard | Caroline Wozniacki | 6-3 6-1 |
| 2016-09-26 | Wuhan | R32 | hard | Caroline Wozniacki | 6-4 6-4 |
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 (75 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Siniakova K.: 10 days rest · 2 matches (14d). Higher means fresher. About