Viktorija Golubic defeated Anna Kalinskaya 6-2 6-4 in the Monterrey quarter-final on hard. The upset overturned the form book — Anna Kalinskaya came in ranked #20, leading the head-to-head 1–0. Viktorija Golubic claimed a first win over Anna Kalinskaya in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-10-06 | Indian Wells | R32 | hard | Anna Kalinskaya | 1-6 6-1 6-3 |
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
Golubic V.: 10 days rest · 2 matches (14d) · Kalinskaya A.: 9 days rest · 3 matches (14d). Higher means fresher. About