Jan Kumstat vs Filip Cristian Jianu — Prague Semi-final
Kumstat J.
Jan Kumstat defeated Filip Cristian Jianu in the semifinals of the Prague tournament on clay, winning 6-1, 6-4. Kumstat hit 6 aces and did not commit a double fault, while Jianu had 2 aces and 1 double fault. Kumstat converted 50% of his break points and won 3 service breaks, compared to Jianu's 0 breaks.
Key context
- Match story: Jan Kumstat dropped just 5 games past Filip Cristian Jianu.
Head to head
No previous meetings on record.
Statistics
This seasonAverages over each player's completed matches in the selected window (10 vs 16). ATP, WTA & Challenger.
Win Probability
Pre-match · updated 11:50 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.: 7 days rest · 1 match, 27 games (7d) · Jianu F.: 8 days rest · 5 matches (14d). Higher means fresher. About