Matthew William Donald vs Louis WesselsM25 Muttenz Semi-final

M25 Muttenz · ITF · Semi-final
#461ATP
21 yrs · 175 cm · Right-handed
Last 10 · pre-match
LWWWWLWLWW
1 — 2
Sets
Saturday, 15 August 2026 ·
clay
#530ATP
27 yrs · 198 cm · Right-handed
Last 10 · pre-match
LWWWLLWWLW
William Donald M.
6-2 3-6 4-6
Wessels L.
William Donald M.
6341
Wessels L.
2662

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.

Key context

Head to head

No previous meetings on record.

Statistics

This season
1st serve in·Even
67%
67%
1st serve points won·Slight edge
63%
71%
2nd serve points won·Even
43%
47%
Service points won·Slight edge
57%
63%
Return points won·Slight edge
47%
40%
Break points saved·Slight edge
51%
58%
Aces / match·Clear edge
0.8
3.0
Double faults / match·Clear edge
5.1
4.2

Averages over each player's completed matches in the selected window (12 vs 14). ATP, WTA & Challenger.

Win Probability

Pre-match · updated 09:50 UTC
William Donald M.48%
Wessels L.52%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Toss-up · Too close to call

Calibrated model (out-of-sample validated). Probability is a statistical estimate, not a certainty. How it works.

Umpiry Score

Pre-match
4.6
Heavy underdogUmpiry ScorePartial · surface data limited
  • Back-to-back day (−0.5)
4.9
Heavy underdogUmpiry ScorePartial · surface data limited
  • Back-to-back day (−0.5)
Form & Matchup
5.0No prior meetings
H2H
5.0No prior meetings
4.14 of last 10 on clay
Surface form
5.46 of last 10 on clay
0.0
Win streak
0.0Lost last 2
Context
5.0Didn't play here last year
Defending pts
5.0Didn't play here last year

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.

Freshness

Recent load
Freshness·
80

William Donald M.: 1 day rest · 1 match, 25 games (7d). Higher means fresher. About

Conditions

Weather
31°COvercast
Wind 5 km/hHumidity 33%

Draw