Daria Kasatkina defeated Katerina Siniakova 6-2 6-3 in the Moscow round of 16 on hard. The upset overturned the form book — Katerina Siniakova came in ranked #34, defending last year's round of 32. Daria Kasatkina extended the head-to-head to 6–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-09-15 | Seoul | R16 | hard | Katerina Siniakova | 7-6(2) 6-2 |
| 2025-05-26 | Roland Garros | R128 | clay | Daria Kasatkina | 6-1 3-6 6-2 |
| 2024-10-14 | Ningbo | R16 | hard | Daria Kasatkina | 1-6 6-3 6-2 |
| 2022-07-18 | Hamburg | R32 | clay | Katerina Siniakova | 6-2 2-6 6-4 |
| 2020-09-14 | Rome | R32 | clay | Daria Kasatkina | 6-2 6-3 |
| 2019-05-13 | Rome | R32 | clay | Daria Kasatkina | 2-6 6-4 6-1 |
| 2018-03-05 | Indian Wells | R64 | hard | Daria Kasatkina | 6-2 5-2 RET |
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 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Kasatkina D.: 10 days rest · 3 matches (14d) · Siniakova K.: 12 days rest · 2 matches (14d). Higher means fresher. About