
Lorenzo Giustino faces Dimitar Kuzmanov in the Sion quarter-final on clay. Lorenzo Giustino is the paper favourite — ranked #195 — but Dimitar Kuzmanov arrives in form, winning 6 of their last 8 on clay to Lorenzo Giustino's 5.
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.
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.
Averages over each player's completed matches in the selected window (24 vs 29). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Giustino L.: 1 day rest · 1 match, 19 games (7d) · Kuzmanov D.: 1 day rest · 1 match, 19 games (7d). Higher means fresher. About
No previous meetings on record.