Angelique Kerber defeated Katerina Siniakova 6-2 1-6 7-5 in the Madrid round of 32 on clay. The result followed the form book — Angelique Kerber came in leading the head-to-head 5–1, defending last year's round of 64. Angelique Kerber extended the head-to-head to 6–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-10-06 | Indian Wells | R64 | hard | Angelique Kerber | 6-1 6-7(4) 7-5 |
| 2021-06-21 | Bad Homburg | F | grass | Angelique Kerber | 6-3 6-2 |
| 2021-02-03 | Grampians Trophy | R32 | hard | Angelique Kerber | 6-3 4-6 6-3 |
| 2020-09-14 | Rome | R64 | clay | Katerina Siniakova | 6-3 6-1 |
| 2016-10-03 | Beijing | R64 | hard | Angelique Kerber | 6-4 6-4 |
| 2015-06-15 | Birmingham | QF | grass | Angelique Kerber | 6-2 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 clay field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (198 vs 200). 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