Jan Kumstat vs Alan WaznyHamburg Qualifying Semi-final

Hamburg · CHALLENGER · Qualifying Semi-final
#336ATP
19 yrs · Right-handed
Last 10
WWWWWLWWLW
Sets
Sunday, 9 August 2026 ·
clay
M5 · 1st on
#859ATP
19 yrs
Last 10
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Kumstat J.
vs
Wazny A.

Jan Kumstat faces Alan Wazny in the Hamburg qualifying semi-final on clay. Jan Kumstat holds the paper edge — ranked #336.

Win Probability

Pre-match · updated 07:50 UTC
Kumstat J.76%
Wazny A.24%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Clear favourite · Kumstat J. 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.

Key context

Common opponents

Last 12 months
No common opponents in the last 12 months.
Includes tour-level, 125s, qualifying and team events (⚑). Walkovers excluded. Describes past results in different contexts — not a prediction.

Umpiry Score

Pre-match
7.1
Strong advantageUmpiry ScorePartial · surface data limited
5.4
Clear underdogUmpiry ScorePartial · surface data limited
Form & Matchup
5.0No prior meetings
H2H
5.0No prior meetings
9.19 of last 10 on clay
Surface form
2.92 of last 7 on clay
9.05-match win streak
Win streak
0.0Lost last 2
Fatigue & Travel
7.01 three-setter in 14 days
3-set count
Context
5.0Didn't play here last year
Defending pts
5.0Didn't play here last year

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.

10 vs 5 matches

Statistics

This season
1st serve in·Slight edge
56%
62%
1st serve points won·Even
72%
68%
2nd serve points won·Even
58%
54%
Service points won·Even
66%
62%
Return points won·Even
39%
41%
Break points saved·Clear edge
40%
57%
Aces / match·Dominant
6.7
2.6
Double faults / match·Even
2.1
2.2

Averages over each player's completed matches in the selected window (10 vs 5). ATP, WTA & Challenger.

Serve vs return

This season
Kumstat J.serving76% hold

wins 61% of points on serve vs Wazny A.

Wazny A.serving73% hold

wins 60% of points on serve vs Kumstat J.

Even serve battle

Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About

Freshness

Recent load
Freshness·Clear edge
84
100

Kumstat J.: 7 days rest · 1 match, 16 games (7d) · Wazny A.: 21 days rest. Higher means fresher. About

Conditions

Court speed
Slowlow bounce, long rallies
SlowFast
Weather forecast
20°CMainly clear
Wind 12 km/hHumidity 57%

Head to head

No previous meetings on record.

Draw