Anna Kalinskaya defeated Maria Camila Osorio Serrano 6-3 0-6 6-2 in the Roland Garros round of 32 on clay. The upset overturned the form book — Maria Camila Osorio Serrano came in leading the head-to-head 2–0, defending last year's round of 128. Anna Kalinskaya claimed a first win over Maria Camila Osorio Serrano in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-09-27 | Beijing | R64 | hard | Maria Camila Osorio Serrano | 6-1 4-6 6-4 |
| 2021-06-28 | Wimbledon | R128 | grass | Maria Camila Osorio Serrano | 1-6 6-0 6-4 |
Averages over each player's completed matches in the selected window (30 vs 21). ATP, WTA & Challenger.
Kalinskaya A.: 7 days rest · 1 match, 25 games (7d) · Camila Osorio Serrano M.: 11 days rest · 1 match (14d). Higher means fresher. About
wins 58% of points on serve vs Kalinskaya A.
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