Yeon Woo Ku defeated Lucrezia Stefanini 6-4, 6-2 in the semifinals of the W100 Evansville. Ku converted 50% of her break points, while Stefanini converted all three of her opportunities. Ku won 63% of her first-serve points, compared to 41% for Stefanini, and secured six service breaks to Stefanini's three.
No previous meetings on record.
Averages over each player's completed matches in the selected window (34 vs 25). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Toss-up · Too close to call
Calibrated model (out-of-sample validated). 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.
Stefanini L.: 3 days rest · 3 matches, 44 games (7d) · Woo Ku Y.: 21 days rest. 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