Jan Kumstat vs Sumit Nagal — Liberec Semi-final
IND7
Kumstat J.
Jan Kumstat defeated Sumit Nagal 7-5, 6-4 in the semifinals of the Liberec tournament on clay. Kumstat hit 9 aces and 3 double faults, winning 69% of his first serves, while Nagal had 6 aces and 1 double fault, winning 61% of his first serves. Kumstat converted 38% of break points and broke Nagal's serve 3 times, while Nagal converted 50% of break points and broke Kumstat's serve once.
Key context
- Match story: Jan Kumstat edged Sumit Nagal in two tight sets (7–5 6–4).
Head to head
No previous meetings on record.
Statistics
This seasonAverages over each player's completed matches in the selected window (10 vs 22). ATP, WTA & Challenger.
Win Probability
Pre-match · updated 09:50 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 loadKumstat J.: 2 days rest · 5 matches, 131 games (7d) · Nagal S.: 1 day rest · 2 matches, 43 games (7d). Higher means fresher. About