David Jorda Sanchis faces Tristan Boyer in the Lyon semi-final on clay. Tristan Boyer holds the paper edge — ranked #198, a roughly 80-point clay Elo advantage. Recent clay form is closely matched.
Clear favourite · Boyer T. clearly ahead, but no certainty
Calibrated model · 63% favourite accuracy (2025–26, out-of-sample). 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.
No previous meetings on record.
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.