JK
ATP · Rank #187
ATP · Rank #187
Jan Kumstat: Predictions and form
19yrs
1.96 m
83 kg
#508Career high
Right
75%Hit rate
48
Matches tracked
Form guide
LWWWW
Just played, coming up
Select a match to open its page
Challenger - Prague, Czech Republic: C. Tseng against J. Kumstat, 13:00, Finished. Winner odds: C. Tseng 3.05, J. Kumstat 1.41. Predicted winner: J. Kumstat, priced at 1.41, trust score 4.2 of 10. Graded a hit. Predicted scoreline: 6-4, 3-6, 2-6. Our best tip: J. Kumstat, priced at 1.41, trust score 4.2 of 10. Graded a hit.
C. Tseng
J. Kumstat
Challenger - Prague, Czech Republic: J. Kumstat against F. Jianu, 13:15, Finished. Winner odds: J. Kumstat 1.29, F. Jianu 3.55. Predicted winner: J. Kumstat, priced at 1.29, trust score 4.3 of 10. Graded a hit. Predicted scoreline: 6-3, 6-4. Our best tip: J. Kumstat, priced at 1.29, trust score 4.3 of 10. Graded a hit.
J. Kumstat
F. Jianu
Challenger - Prague, Czech Republic: M. Mrva against J. Kumstat, 15:25, Finished. Winner odds: M. Mrva 2.02, J. Kumstat 1.83. Predicted winner: J. Kumstat, priced at 1.83, trust score 3.2 of 10. Graded a hit. Predicted scoreline: 4-6, 3-6. Our best tip: J. Kumstat, priced at 1.83, trust score 3.2 of 10. Graded a hit.
M. Mrva
J. Kumstat
Challenger - Prague, Czech Republic: J. Kumstat against S. Nagal, 10:45, Finished. Winner odds: J. Kumstat 1.5, S. Nagal 2.67. Predicted winner: S. Nagal, priced at 2.67, trust score 1.0 of 10. Graded a miss. Predicted scoreline: 4-6, 6-3, 3-6. Our best tip: O19.5, priced at 1.47, trust score 1.3 of 10. Graded a hit.
J. Kumstat
S. Nagal
(4)
Challenger - Prague, Czech Republic: P. Brunclik against J. Kumstat, 13:15, Finished. Winner odds: P. Brunclik 2.22, J. Kumstat 1.68. Predicted winner: J. Kumstat, priced at 1.68, trust score 5.8 of 10. Graded a hit. Predicted scoreline: 6-2, 3-6, 3-6. Our best tip: J. Kumstat, priced at 1.68, trust score 5.8 of 10. Graded a hit.
P. Brunclik
J. Kumstat
13:00
Finished
1300
C. Tseng
J. Kumstat
1
2
▴3.05
▾1.41
2
▾1.41
643626
2
▾1.41
4.2
13:15
Finished
1315
J. Kumstat
F. Jianu
2
0
▾1.29
▴3.55
1
▾1.29
6364
1
▾1.29
4.3
15:25
Finished
1525
M. Mrva
J. Kumstat
0
2
▴2.02
▾1.83
2
▾1.83
4636
2
▾1.83
3.2
10:45
Finished
1045
J. Kumstat
S. Nagal
(4) 2
0
1.5
2.67
2
2.67
466336
O19.5
▴1.47
1.3
13:15
Finished
1315
P. Brunclik
J. Kumstat
0
2
▾2.22
▴1.68
2
▴1.68
623636
2
▴1.68
5.8
Challenger - Hamburg, Germany: J. Kumstat against M. Möller, 12:40, Finished. Winner odds: J. Kumstat 1.6, M. Möller 2.35. Predicted winner: M. Möller, priced at 2.35, trust score 1.5 of 10. Graded a miss. Predicted scoreline: 2-6, 6-3, 4-6. Our best tip: O18.5, priced at 1.4, trust score 4.6 of 10. Graded a hit.
J. Kumstat
(Q)
M. Möller
(A)
Challenger - Hamburg, Germany: M. Pucinelli de against J. Kumstat, 13:15, Finished. Winner odds: M. Pucinelli de 2.63, J. Kumstat 1.51. Predicted winner: J. Kumstat, priced at 1.51, trust score 5.9 of 10. Graded a hit. Predicted scoreline: 4-6, 6-3, 3-6. Our best tip: J. Kumstat, priced at 1.51, trust score 5.9 of 10. Graded a hit.
M. Pucinelli de
J. Kumstat
(Q)
Challenger - Hamburg, Germany: C. Taberner against J. Kumstat, 13:40, Finished. Winner odds: C. Taberner 2.35, J. Kumstat 1.66. Predicted winner: J. Kumstat, priced at 1.66, trust score 3.1 of 10. Graded a hit. Predicted scoreline: 6-7, 4-6. Our best tip: O18.5, priced at 1.26, trust score 3.3 of 10. Graded a miss.
C. Taberner
J. Kumstat
(Q)
Challenger - Hamburg, Germany: J. Kumstat against M. Houkes, 09:30, Finished. Winner odds: J. Kumstat 1.75, M. Houkes 2.22. Predicted winner: J. Kumstat, priced at 1.75, trust score 4.4 of 10. Graded a hit. Predicted scoreline: 6-3, 4-6, 6-3. Our best tip: J. Kumstat, priced at 1.75, trust score 4.4 of 10. Graded a hit.
J. Kumstat
(Q)
M. Houkes
Challenger - Hamburg, Germany: J. Mackenzie against J. Kumstat, 15:20, Finished. Winner odds: J. Mackenzie 2.52, J. Kumstat 1.56. Predicted winner: J. Kumstat, priced at 1.56, trust score 3.3 of 10. Graded a hit. Predicted scoreline: 3-6, 4-6. Our best tip: J. Kumstat, priced at 1.56, trust score 3.3 of 10. Graded a hit.
J. Mackenzie
(WC)
J. Kumstat
Challenger - Hamburg, Germany, Qualifying: J. Kumstat against T. Zeuch, 09:30, Finished. Winner odds: J. Kumstat 1.06, T. Zeuch 8. Predicted winner: J. Kumstat, priced at 1.06, trust score 6.6 of 10. Graded a hit. Predicted scoreline: 7-5, 6-2. Our best tip: 2:0, priced at 1.18, trust score 6.6 of 10. Graded a miss.
J. Kumstat
T. Zeuch
Challenger - Hamburg, Germany, Qualifying: J. Kumstat against A. Wazny, 09:30, Finished. Winner odds: J. Kumstat 1.09, A. Wazny 6.5. Predicted winner: J. Kumstat, priced at 1.09, trust score 3.8 of 10. Graded a hit. Predicted scoreline: 4-6, 6-4, 6-3. Our best tip: J. Kumstat, priced at 1.09, trust score 3.8 of 10. Graded a hit.
J. Kumstat
A. Wazny
12:40
Finished
1240
J. Kumstat
(Q)
M. Möller
(A) 2
1
▴1.6
▾2.35
2
▾2.35
266346
O18.5
▾1.4
4.6
13:15
Finished
1315
M. Pucinelli de
J. Kumstat
(Q) 1
2
▴2.63
▾1.51
2
▾1.51
466336
2
▾1.51
5.9
13:40
Finished
1340
C. Taberner
J. Kumstat
(Q) 0
2
▴2.35
▾1.66
2
▾1.66
6746
O18.5
▾1.26
3.3
09:30
Finished
0930
J. Kumstat
(Q)
M. Houkes
2
0
▴1.75
▾2.22
1
▴1.75
634663
1
▴1.75
4.4
15:20
Finished
1520
J. Mackenzie
(WC)
J. Kumstat
1
2
▾2.52
▴1.56
2
▴1.56
3646
2
▴1.56
3.3
09:30
Finished
0930
J. Kumstat
T. Zeuch
2
1
▾1.06
▴8
1
1.06
7562
2:0
▾1.18
6.6
09:30
Finished
0930
J. Kumstat
A. Wazny
2
0
▾1.09
▴6.5
1
▾1.09
466463
1
▾1.09
3.8
Challenger - Liberec, Czech Republic: J. Kumstat against G. Bueno, 10:00, Finished. Winner odds: J. Kumstat 1.87, G. Bueno 2.07. Predicted winner: J. Kumstat, priced at 1.87, trust score 2.5 of 10. Graded a hit. Predicted scoreline: 6-3, 6-4. Our best tip: O18.5, priced at 1.29, trust score 2.9 of 10. Graded a miss.
J. Kumstat
(WC)
G. Bueno
(2)
Challenger - Liberec, Czech Republic: J. Kumstat against S. Nagal, 10:50, Finished. Winner odds: J. Kumstat 1.81, S. Nagal 2.05. Predicted winner: J. Kumstat, priced at 1.81, trust score 6.1 of 10. Graded a hit. Predicted scoreline: 6-4, 6-3. Our best tip: J. Kumstat, priced at 1.81, trust score 6.1 of 10. Graded a hit.
J. Kumstat
(WC)
S. Nagal
(7)
Challenger - Liberec, Czech Republic: J. Kumstat against F. Ferreira, 10:00, Finished. Winner odds: J. Kumstat 1.59, F. Ferreira 2.35. Predicted winner: J. Kumstat, priced at 1.59, trust score 4.1 of 10. Graded a hit. Predicted scoreline: 6-3, 6-4. Our best tip: J. Kumstat, priced at 1.59, trust score 4.1 of 10. Graded a hit.
J. Kumstat
(WC)
F. Ferreira
(8)
Challenger - Liberec, Czech Republic: J. Kumstat against T. Seyboth Wild, 10:00, Finished. Winner odds: J. Kumstat 2.7, T. Seyboth Wild 1.5. Predicted winner: J. Kumstat, priced at 2.7, trust score 1.1 of 10. Graded a hit. Predicted scoreline: 3-6, 6-4, 6-3. Our best tip: U24.5, priced at 1.59, trust score 1.3 of 10. Graded a hit.
J. Kumstat
(WC)
T. Seyboth Wild
Challenger - Liberec, Czech Republic: Z. Kolar against J. Kumstat, 14:55, Finished. Winner odds: Z. Kolar 1.72, J. Kumstat 2.2. Predicted winner: J. Kumstat, priced at 2.2, trust score 3.0 of 10. Graded a hit. Predicted scoreline: 3-6, 4-6. Our best tip: O19.5, priced at 1.45, trust score 3.2 of 10. Graded a hit.
Z. Kolar
J. Kumstat
10:00
Finished
1000
J. Kumstat
(WC)
G. Bueno
(2) 2
0
▾1.87
▴2.07
1
▾1.87
6364
O18.5
▾1.29
2.9
10:50
Finished
1050
J. Kumstat
(WC)
S. Nagal
(7) 2
0
▾1.81
▴2.05
1
▾1.81
6463
1
▾1.81
6.1
10:00
Finished
1000
J. Kumstat
(WC)
F. Ferreira
(8) 2
0
▾1.59
▴2.35
1
▾1.59
6364
1
▾1.59
4.1
10:00
Finished
1000
J. Kumstat
(WC)
T. Seyboth Wild
2
0
▴2.7
▾1.5
1
▴2.7
366463
U24.5
▴1.59
1.3
14:55
Finished
1455
Z. Kolar
J. Kumstat
1
2
▴1.72
▾2.2
2
▾2.2
3646
O19.5
1.45
3.2
ITF Men - M25 Ollersbach: J. Kumstat against M. Erhard, 13:00, Finished. Winner odds: J. Kumstat 1.98, M. Erhard 1.85. Predicted winner: J. Kumstat, priced at 1.98, trust score 1.6 of 10. Graded a miss. Predicted scoreline: 7-6, 6-4. Our best tip: O21.5, priced at 1.75, trust score 3.7 of 10. Graded a hit.
J. Kumstat
M. Erhard
ITF Men - M25 Ollersbach: Y. Inui against J. Kumstat, 11:09, Finished. Winner odds: Y. Inui 10, J. Kumstat 1.02. Predicted winner: J. Kumstat, priced at 1.02, trust score 6.5 of 10. Graded a hit. Predicted scoreline: 2-6, 3-6. Our best tip: 0:2, priced at 1.03, trust score 6.5 of 10. Graded a hit.
Y. Inui
J. Kumstat
13:00
Finished
1300
J. Kumstat
M. Erhard
1
2
▾1.98
▴1.85
1
▾1.98
7664
O21.5
1.75
3.7
11:09
Finished
1109
Y. Inui
J. Kumstat
0
2
▾10
▴1.02
2
1.02
2636
0:2
1.03
6.5
Results by surface
Hard
9-6
Clay
26-8
Overall
35-14
BananaCore's calls for this player
36 of 48 right
Only matches we forecast are counted
Frequent opponents
Sumit Nagal
2 matches
2-0
Marvin Möller
2 matches
2-0
Thijs Boogaard
2 matches
2-0
More on Jan Kumstat
World No. 187 Jan Kumstat is 19 and plays right-handed. On clay the record reads 26-8, well ahead of 9-6 on the other surfaces. With 57.4% of first serves in play and 77.8% of them turned into points, the first delivery is a steady asset. A real threat on return: 33.7% of break points are converted. Point for point, 60.4% go this player's way.
In form: 4 of the last 5 finished matches won. No match in our data has lasted longer than the 35-game duel with M. Möller. Open any of these matches for BananaCore's pick, a predicted scoreline and the serve and return figures behind them. Latest tournament on record: Challenger Como Italy.
Serving and returning
1st serves in
54.3%
Won on 1st serve
79.4%
Won on 2nd serve
57.2%
Aces per match
7.2
Double faults per match
2.3
Break points saved
77.8%
Return games won
26.4%
Points won on return
39.2%
Service points won
69.3%
All points won
53.9%
Career
Past 12 months
3
Titles
4
Finals
7
Semi-final runs
22
Tournaments played
Results by tournament
Liberec, Czech Republic
Challenger
Winner
Hamburg, Germany
Challenger
Winner
Prague, Czech Republic
Challenger
Winner
ITF M15 Heraklion Men
ITF
Final
Bunschoten, Netherlands
Challenger
Semi-Finals
ITF M25 Ceska Lipa Men
ITF
Semi-Finals
ITF M25 Pardubice Men
ITF
Semi-Finals
ITF M15 Monastir Men
ITF
Quarter-Finals
ITF M25 Ollersbach Men
ITF
Quarter-Finals
ITF M25 Pszczyna Men
ITF
Quarter-Finals
Athens, Greece Men Singles
Challenger
Round of 16
ITF M25 Klosters Men
ITF
Round of 16
Monastir, Tunisia
Challenger
Round of 16
ITF M15 Monastir 39 Men
ITF
Round of 32
ITF M15 Monastir Men 2
ITF
Round of 32
ITF M25 Heraklion 2 Men
ITF
Round of 32
ITF M25 Monastir 35 Men
ITF
Round of 32
ITF M25 Trento Men
ITF
Round of 32
ITF M25 Zagreb Men
ITF
Round of 32
Lyon (Decines-Charpieu), France
Challenger
Round of 32
Prostejov, Czech Republic
Challenger
Round of 32
Troyes, France
Challenger
Qualifying
Sorted by best result, not by date
Year by year
2026in progress
24–3
W–L
27
Matches
5–4
Tiebreaks
8.3
Aces per match
2.7
Double faults per match
1st serves in
58%
Won on 1st serve
78.6%
Won on 2nd serve
56.7%
Break points converted
37.7%
Break points saved
76.9%
2025
3–2
W–L
5
Matches
—
Tiebreaks
2.4
Aces per match
4.2
Double faults per match
1st serves in
58.1%
Won on 1st serve
55.9%
Won on 2nd serve
24.6%
Break points converted
37.5%
Break points saved
47.7%
2024
0–3
W–L
3
Matches
—
Tiebreaks
2
Aces per match
4.3
Double faults per match
1st serves in
44.7%
Won on 1st serve
61.8%
Won on 2nd serve
35.1%
Break points converted
20%
Break points saved
51.7%
Official singles figures for this season, as published by the tour. Don't expect the wins and losses to match our Predictions tab: that record covers only the matches we forecast. A dash marks a figure with no data yet.
Common questions
How often do our calls on Jan Kumstat come true?
+
36 of our 48 graded predictions on Jan Kumstat's matches were right, 75%. The latest 20 are listed below, each pick next to its result.
Which opponent has Jan Kumstat met most in our records?
+
Sumit Nagal, 2 times, with Jan Kumstat at 2-0 in those matches.