

Anna Kalinskaya defeated Jelena Ostapenko 6-3 6-1 in the Miami round of 32 on hard. The result followed the form book — Anna Kalinskaya came in ranked #20, leading the head-to-head 3–1, defending last year's round of 64. Anna Kalinskaya extended the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-05-11 | Rome | R16 | clay | Jelena Ostapenko | 1-6 2-6 |
| 2026-02-15 | Dubai | R64 | hard | Anna Kalinskaya | 2-6 6-1 6-4 |
| 2024-02-19 | Dubai | R16 | hard | Anna Kalinskaya | 6-4 7-5 |
| 2023-01-09 | Adelaide 2 | R32 | hard | Anna Kalinskaya | 6-3 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 (118 vs 104). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
Kalinskaya A.: 9 days rest · 3 matches (14d) · Ostapenko J.: 9 days rest · 3 matches (14d). Higher means fresher. About