Louis Wessels defeated Matthew William Donald in the M25 Muttenz semifinals on clay, 2-6, 6-3, 6-4. Wessels served six aces to Donald's zero and won 69 percent of his first serves, compared to 57 percent for Donald. Both players converted 42 percent of break points and were broken five times each.
No previous meetings on record.
Averages over each player's completed matches in the selected window (12 vs 14). ATP, WTA & Challenger.
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.
William Donald M.: 1 day rest · 1 match, 25 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