JK
ATP · Rank #194
ATP · Rank #194
Jan Kumstat: Predictions and form
19yrs
1.98 m
91 kg
#184Career high
Right
73.7%Hit rate
57
Matches tracked
Form guide
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Challenger - Taipei, Chinese Taipei: Y. Watanuki against J. Kumstat, 06:30, Finished. Winner odds: Y. Watanuki 1.53, J. Kumstat 2.38. Predicted winner: Y. Watanuki, priced at 1.51, trust score 2.5 of 10. Graded a hit. Predicted scoreline: 6-4, 7-6. Our best tip: O18.5, priced at 1.27, trust score 3.0 of 10. Graded a hit.
Y. Watanuki
(Q)
J. Kumstat
Challenger - Taipei, Chinese Taipei: Y. Shimizu against J. Kumstat, 05:00, Finished. Winner odds: Y. Shimizu 2.4, J. Kumstat 1.58. Predicted winner: J. Kumstat, priced at 1.58, trust score 4.4 of 10. Graded a hit. Predicted scoreline: 6-3, 3-6, 4-6. Our best tip: J. Kumstat, priced at 1.58, trust score 4.4 of 10. Graded a hit.
Y. Shimizu
(Q)
J. Kumstat
Challenger - Taipei, Chinese Taipei: J. Kumstat against H. Mayot, 03:20, Finished. Winner odds: J. Kumstat 2.33, H. Mayot 1.6. Predicted winner: J. Kumstat, priced at 2.33, trust score 1.9 of 10. Graded a hit. Predicted scoreline: 4-6, 6-3, 6-3. Our best tip: O20.5, priced at 1.42, trust score 2.4 of 10. Graded a hit.
J. Kumstat
H. Mayot
Challenger - Taipei, Chinese Taipei: J. Kumstat against B. Harris, 06:55, Finished. Winner odds: J. Kumstat 1.83, B. Harris 1.95. Predicted winner: J. Kumstat, priced at 1.83, trust score 2.1 of 10. Graded a hit. Predicted scoreline: 6-2, 4-6, 6-3. Our best tip: O20.5, priced at 1.44, trust score 2.3 of 10. Graded a hit.
J. Kumstat
B. Harris
Challenger - Taipei, Chinese Taipei: J. Schwaerzler against J. Kumstat, 08:40, Finished. Winner odds: J. Schwaerzler 1.9, J. Kumstat 1.92. Predicted winner: J. Kumstat, priced at 1.92, trust score 5.9 of 10. Graded a hit. Predicted scoreline: 5-7, 4-6. Our best tip: J. Kumstat, priced at 1.92, trust score 5.9 of 10. Graded a hit.
J. Schwaerzler
J. Kumstat
06:30
Finished
0630
Y. Watanuki
(Q)
J. Kumstat
2
0
▾1.53
▴2.38
1
▾1.51
6476
O18.5
1.27
3.0
05:00
Finished
0500
Y. Shimizu
(Q)
J. Kumstat
0
2
▾2.4
▴1.58
2
▴1.58
633646
2
▴1.58
4.4
03:20
Finished
0320
J. Kumstat
H. Mayot
2
1
▴2.33
▾1.6
1
▴2.33
466363
O20.5
1.42
2.4
06:55
Finished
0655
J. Kumstat
B. Harris
2
0
1.83
1.95
1
1.83
624663
O20.5
▾1.44
2.3
08:40
Finished
0840
J. Schwaerzler
J. Kumstat
1
2
▾1.9
▴1.92
2
▴1.92
5746
2
▴1.92
5.9
Challenger - Olbia, Italy: J. Fearnley against J. Kumstat, 14:45, Finished. Winner odds: J. Fearnley 1.42, J. Kumstat 2.8. Predicted winner: J. Kumstat, priced at 2.8, trust score 1.0 of 10. Graded a miss. Predicted scoreline: 6-3, 3-6, 4-6. Our best tip: O20.5, priced at 1.67, trust score 1.0 of 10. Graded a miss.
J. Fearnley
(1)
J. Kumstat
Challenger - Olbia, Italy: J. Kumstat against E. Butvilas, 14:55, Finished. Winner odds: J. Kumstat 2.23, E. Butvilas 1.63. Predicted winner: J. Kumstat, priced at 2.23, trust score 5.2 of 10. Graded a hit. Predicted scoreline: 6-3, 7-6. Our best tip: J. Kumstat, priced at 2.23, trust score 5.2 of 10. Graded a hit.
J. Kumstat
E. Butvilas
14:45
Finished
1445
J. Fearnley
(1)
J. Kumstat
2
0
▾1.42
▴2.8
2
▴2.8
633646
O20.5
▴1.67
1.0
14:55
Finished
1455
J. Kumstat
E. Butvilas
2
0
▾2.23
▴1.63
1
▾2.23
6376
1
▾2.23
5.2
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
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
Results by surface
Hard
14-9
Clay
26-9
Overall
40-18
BananaCore's calls for this player
42 of 57 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. 194 Jan Kumstat is 19 and plays right-handed. Career best: No. 184 in the world. No clear favourite surface: Hard 14-9, Clay 26-9. 8.4 aces a match and 77% won on the first serve over twelve months make the serve the key shot. Average on return: 37.6% of return points won and 28.5% of break points converted. Point for point, 58.7% 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 Taipei Chinese Taipei. Whenever Jan Kumstat is on court, the match also appears among today's tennis predictions, next to every other match of the day.
Serving and returning
1st serves in
57.1%
Won on 1st serve
72.9%
Won on 2nd serve
56.6%
Aces per match
11
Double faults per match
2.5
Break points saved
68.9%
Return games won
6.9%
Points won on return
28.4%
Service points won
65.9%
All points won
47.8%
Career
Past 12 months
3
Titles
4
Finals
6
Semi-final runs
21
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 M15 Monastir Men
ITF
Quarter-Finals
ITF M25 Ollersbach Men
ITF
Quarter-Finals
ITF M25 Pszczyna Men
ITF
Quarter-Finals
Olbia, Italy
Challenger
Round of 16
Athens, Greece Men Singles
Challenger
Round of 16
ITF M25 Klosters Men
ITF
Round of 16
Como, Italy
Challenger
Round of 32
ITF M15 Monastir Men 2
ITF
Round of 32
ITF M25 Heraklion 2 Men
ITF
Round of 32
ITF M25 Trento Men
ITF
Round of 32
ITF M25 Zagreb Men
ITF
Round of 32
Prostejov, Czech Republic
Challenger
Round of 32
Seoul, South Korea
Challenger
Round of 32
Lyon
ATP
Qualifying
Troyes, France
Challenger
Qualifying
Sorted by best result, not by date
Year by year
2026in progress
28–7
W–L
35
Matches
11–4
Tiebreaks
8.7
Aces per match
2.6
Double faults per match
1st serves in
57.6%
Won on 1st serve
77%
Won on 2nd serve
56.6%
Break points converted
36.4%
Break points saved
73.5%
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?
+
42 of our 57 graded predictions on Jan Kumstat's matches were right, 73.7%. 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.