Raphael Collignon vs Valentin Vacherot — Gstaad Quarter-final
Collignon R.
Raphael Collignon faces Valentin Vacherot in the Gstaad quarter-final on clay. Valentin Vacherot holds the paper edge — ranked #21.
Win Probability
Pre-match · updated 18:21 UTC50–58%
58–67%
67–80%
80%+
Toss-up · Too close to call
Calibrated model · 65% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.
Key context
- Serve & return: Valentin Vacherot brings the bigger serve (Serve Rating 59), Raphael Collignon the stronger return game (Return Rating 31).
- Last match: Valentin Vacherot dropped the opening set before beating Yannick Hanfmann 4–6 6–3 6–4.
- Last match: Raphael Collignon won all two sets in tiebreaks against Lorenzo Sonego.
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.
Form trajectory
Direction of recent form — results vs Elo expectation blended with serve/return vs each player's baseline, over the last few months. About
Statistics
This seasonAverages over each player's completed matches in the selected window (29 vs 21). ATP, WTA & Challenger.
Serve vs return
This seasonEach player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Clutch
Under pressurePerformance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Serve & return on clay
Per-surface Serve / Return Rating (0–100, percentile within the clay field, opponent-adjusted over 52 weeks). About
Freshness
Recent loadCollignon R.: 2 days rest · 1 match, 32 games (7d). Higher means fresher. About
Conditions
Head to head
No previous meetings on record.