

Daniel Masur defeated Jiri Lehecka 4-6 6-3 7-6 in the Prague CH round of 64 on clay. The upset overturned the form book — Jiri Lehecka came in ranked #14, defending last year's round of 64.
No previous meetings on record.
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Lehecka J.: 1 day rest · 2 matches, 61 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the clay field, opponent-adjusted over 52 weeks). About