Gabriela Andrea Knutson defeated Shuai Zhang in the semifinals of the Washington tournament, advancing with a 6-4, 1-6, 6-1 victory on hard courts. Knutson hit 8 aces to Zhang's 1 and won 71% of her first-serve points, while converting 50% of her break points. Knutson secured 5 service breaks to Zhang's 4.
No previous meetings on record.
Averages over each player's completed matches in the selected window (39 vs 38). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Slight edge · Zhang S. narrowly ahead
Calibrated model · 65% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.
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.
Zhang S.: 1 day rest · 2 matches, 45 games (7d) · Andrea Knutson G.: 9 days rest · 5 matches (14d). 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