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Jan Kumstat

02/01/2007 · right-handed

Global Elo

1910

Record

0-0

ATP / Tour Record

Wins
0
Losses
0
Matches
0

Challenger Record

Wins
30
Losses
14
Matches
44

Elo and Record by Surface

Clay 1916
Wins
0
Losses
0
Matches
0

Challenger

Wins
25
Losses
10
Matches
35
Hard 1587
Wins
0
Losses
0
Matches
0

Challenger

Wins
5
Losses
4
Matches
9
Grass 1500
Wins
0
Losses
0
Matches
0

Elo Over Time

1955 1436
2022-11-07 2026-08-31 · 1955

44 matches in this range.

Performance vs. the Odds

Career record grouped by how big a favorite the market made Jan Kumstat, based on their average odds.

Heavy favorite (odds below 1.30) 3W–1L · 75.0%
Favorite (odds 1.30-1.80) 15W–1L · 93.8%
Even match (odds 1.80-2.20) 4W–1L · 80.0%
Underdog (odds 2.20-4.00) 2W–1L · 66.7%
Heavy underdog (odds above 4.00) 0W–0L · 0.0%

28 matches with market odds since 2026-05-31.

Serve & Return

Serve and return win rates from the last 10 matches at the selected level.

Not enough ATP/Grand Slam match history yet.

1st Serve In % 56.9%
1st Serve Points Won % 70.6%
2nd Serve Points Won % 52.0%
Return Points Won vs 1st Serve % 23.5%
Return Points Won vs 2nd Serve % 44.9%
Aces per Service Game 0.59
Double Faults per Service Game 0.37

Based on the last 10 Challenger matches.

Break Point Performance

How the player handles the biggest points, from the last 10 matches at the selected level.

Not enough ATP/Grand Slam match history yet.

Break Points Saved % 61.5%
Break Points Converted % 28.3%

Based on the last 10 Challenger matches.

Recent Matches

L Clay Como challenger · 1. round · 2026-08-31

vs Juan Pablo Varillas #234

6-4 6-3

Jan Kumstat Juan Pablo Varillas
4 Aces 3
3 Double Faults 0
61 Service Points 57
29 First Serve In 32
21 First Serve Won 27
16 Second Serve Won 17
3 Break Points Saved 1
5 Break Points Faced 1
- Winners -
- Unforced Errors -
1.3 Average Odds 3.5
W Clay Prague 2 challenger · F · 2026-08-22

vs Chun Hsin Tseng #269

5-7 6-3 6-0

Jan Kumstat Chun Hsin Tseng
2 Aces 3
7 Double Faults 2
89 Service Points 75
52 First Serve In 39
33 First Serve Won 32
15 Second Serve Won 22
7 Break Points Saved 3
12 Break Points Faced 5
- Winners -
- Unforced Errors -
1.4 Average Odds 2.8
W Clay Prague 2 challenger · SF · 2026-08-21

vs Filip Cristian Jianu #284

6-1 6-4

Jan Kumstat Filip Cristian Jianu
6 Aces 2
0 Double Faults 1
41 Service Points 46
25 First Serve In 30
24 First Serve Won 21
13 Second Serve Won 6
0 Break Points Saved 3
0 Break Points Faced 6
- Winners -
- Unforced Errors -
1.3 Average Odds 3.3
W Clay Prague 2 challenger · QF · 2026-08-20

vs Maxim Mrva #309

6-1 7-5

Jan Kumstat Maxim Mrva
4 Aces 3
7 Double Faults 0
64 Service Points 49
36 First Serve In 21
18 First Serve Won 17
13 Second Serve Won 18
0 Break Points Saved 1
5 Break Points Faced 2
- Winners -
- Unforced Errors -
1.8 Average Odds 2.0
W Clay Prague 2 challenger · R16 · 2026-08-19

vs Sumit Nagal #239

7-5 6-3

Jan Kumstat Sumit Nagal
6 Aces 1
4 Double Faults 3
71 Service Points 62
36 First Serve In 40
24 First Serve Won 23
20 Second Serve Won 9
7 Break Points Saved 6
9 Break Points Faced 11
- Winners -
- Unforced Errors -
1.5 Average Odds 2.6
W Clay Prague 2 challenger · 1. round · 2026-08-18

vs Petr Brunclik #332

7-5 6-1

Jan Kumstat Petr Brunclik
6 Aces 10
6 Double Faults 4
52 Service Points 72
29 First Serve In 38
19 First Serve Won 34
12 Second Serve Won 17
2 Break Points Saved 7
5 Break Points Faced 7
- Winners -
- Unforced Errors -
1.6 Average Odds 2.1
W Clay Hamburg challenger · F · 2026-08-16

vs Marvin Moeller #327

4-6 7-6 7-5

Jan Kumstat Marvin Moeller
20 Aces 6
2 Double Faults 2
115 Service Points 112
71 First Serve In 67
53 First Serve Won 51
26 Second Serve Won 25
8 Break Points Saved 6
9 Break Points Faced 7
- Winners -
- Unforced Errors -
1.6 Average Odds 2.3
W Clay Hamburg challenger · SF · 2026-08-15

vs Matheus Pucinelli De Almeida #277

6-4 5-7 6-2

Jan Kumstat Matheus Pucinelli De Almeida
4 Aces 3
5 Double Faults 3
96 Service Points 87
56 First Serve In 39
40 First Serve Won 31
18 Second Serve Won 27
4 Break Points Saved 6
8 Break Points Faced 8
- Winners -
- Unforced Errors -
1.5 Average Odds 2.6
W Clay Hamburg challenger · QF · 2026-08-14

vs Carlos Taberner #409

7-5 0-0

Jan Kumstat Carlos Taberner
1 Aces 6
3 Double Faults 2
44 Service Points 39
21 First Serve In 20
13 First Serve Won 16
11 Second Serve Won 10
5 Break Points Saved 3
7 Break Points Faced 4
- Winners -
- Unforced Errors -
1.6 Average Odds 2.2
W Clay Hamburg challenger · R16 · 2026-08-13

vs Max Houkes #242

6-4 7-6

Jan Kumstat Max Houkes
11 Aces 5
3 Double Faults 3
72 Service Points 88
46 First Serve In 45
38 First Serve Won 32
14 Second Serve Won 23
4 Break Points Saved 7
5 Break Points Faced 9
- Winners -
- Unforced Errors -
1.6 Average Odds 2.1