Luca Staeheli vs Juan Manuel La Serna — Sion Round of 16
Staeheli L.
Juan Manuel La Serna advanced to the quarterfinals at the Sion tournament, defeating Luca Staeheli in the Round of 16. Staeheli retired during the match, trailing 6-3, 1-1. La Serna had converted 100% of his break points and won 78% of his first-serve points in the contest.
Head to head
No previous meetings on record.
Statistics
This seasonAverages over each player's completed matches in the selected window (6 vs 27). ATP, WTA & Challenger.
Win Probability
Pre-match · updated 07:50 UTC50–58%
58–67%
67–80%
80%+
Toss-up · Too close to call
Calibrated model · 63% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.
Umpiry Score
Pre-matchThe 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 loadStaeheli L.: 1 day rest · 1 match, 16 games (7d) · La Serna J.: 1 day rest · 1 match, 18 games (7d). Higher means fresher. About