

Anhelina Kalinina defeated Aryna Sabalenka 6-4 1-6 6-1 in the Miami round of 32 on hard. The upset overturned the form book — Aryna Sabalenka came in ranked #1, defending last year's quarter-final.
No previous meetings on record.
Averages over each player's completed matches in the selected window (129 vs 191). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Kalinina A.: 5 days rest · 2 matches, 55 games (7d) · Sabalenka A.: played today · 4 matches, 76 games (7d). Higher means fresher. About
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