Kumstat Jan - profile

Kumstat Jan 

Kumstat Jan

Country: Czech Republic
Age: 19 (2. 1. 2007)
Current/Highest rank - singles: 186. / 186.
Current/Highest rank - doubles: 468. / 450.
Sex: man
Plays: right
  • Next match
Tournament Round Start Match H A
 Como challenger 1R 31.08. 10:00 Varillas J. - Kumstat J. 4.49 1.15
 
Year Round
The player takes part in the tournament for the first time.
 

Player's record

Year Summary Clay Hard Indoors Grass Not set
Summary: 66/39 44/22 13/11 9/6 - -
2026 37/13 27/7 6/4 4/2 - -
2025 26/18 17/9 7/7 2/2 - -
2024 3/4 0/3 - 3/1 - -
2023 0/1 0/1 - - - -
2022 0/3 0/2 - 0/1 - -
Year Summary Clay Hard Indoors Grass Not set
Summary: 35/13 21/11 12/1 2/1 - -
2026 19/5 9/4 8/0 2/1 - -
2025 15/7 11/6 4/1 - - -
2022 1/1 1/1 - - - -
No record for this player.
Year Main tournaments Lower level tournaments
2026 - 3
Total: 0 3
Year Main tournaments Lower level tournaments
2026 - 4
2025 - 1
Total: 0 5
Year Main tournaments Lower level tournaments
No titles
  Prague 2 challenger Round Result H A
22.08.   Kumstat J. - Tseng C. F 5-7, 6-3, 6-0 1.39 2.87
21.08.   Kumstat J. - Jianu F. SF 6-1, 6-4 1.30 3.36
20.08.   Kumstat J. - Mrva M. QF 6-1, 7-5 1.75 1.98
19.08.   Kumstat J. - Nagal S. R16 7-5, 6-3 1.47 2.57
18.08.   Kumstat J. - Brunclik P. 1R 7-5, 6-1 1.62 2.20
  Hamburg challenger Round Result H A
16.08.   Kumstat J. - Moeller M. F 4-6, 7-65, 7-5 1.56 2.30
15.08.   Kumstat J. - Pucinelli De Almeida M. SF 6-4, 5-7, 6-2 1.48 2.52
14.08.   Kumstat J. - Taberner C. QF 7-5, 0-0 1.61 2.21
13.08.   Kumstat J. - Houkes M. R16 6-4, 7-64 1.61 2.20
11.08.   Kumstat J. - MacKenzie J. 1R 65-7, 6-3, 6-3 1.51 2.45
  Liberec challenger Round Result H A
02.08.   Kumstat J. - Bueno G. F 6-3, 6-1 1.71 2.05
01.08.   Kumstat J. - Nagal S. SF 7-5, 6-4 1.78 1.95
31.07.   Kumstat J. - Silva F. QF 6-4, 7-5 1.57 2.29
29.07.   Kumstat J. - Seyboth Wild T. R16 6-4, 6-2 2.53 1.48
27.07.   Kumstat J. - Kolar Z. 1R 6-2, 4-6, 6-3 2.11 1.67
  Futures 2026 Round Result H A
24.07.   Erhard M. - Kumstat J. QF 1-6, 7-61, 6-2 1.83 1.86
23.07.   Kumstat J. - Orlov V. R16 1.34 2.97
22.07.   Kumstat J. - Inui Y. 1R 6-4, 6-2 1.02 10.56
  Bunschoten challenger Round Result H A
18.07.   Gentzsch T. - Kumstat J. SF 7-5, 6-4 1.58 2.27
17.07.   Kumstat J. - Boogaard T. QF 6-1, 6-1 1.71 2.06
16.07.   Kumstat J. - Broska F. R16 65-7, 6-4, 6-4 1.83 1.89
14.07.   Kumstat J. - Squire H. 1R 6-3, 6-1 2.61 1.45
13.07.   Kumstat J. - Alves M. Q-R16 6-3, 6-3 1.97 1.76
12.07.   Kumstat J. - Raquillet L. Q-1R 7-62, 6-4 1.76 1.95
  Troyes challenger Round Result H A
28.06.   Lagutin P. - Kumstat J. Q-1R 7-65, 6-2 2.70 1.42
  Futures 2026 Round Result H A
23.06.   Markovina D. - Kumstat J. 1R 6-1, 1-6, 6-3 4.50 1.17
18.06.   Wehnelt K. - Kumstat J. R16 6-3, 6-2 2.94 1.36
17.06.   Kumstat J. - Denolly C. 1R 6-4, 7-63 1.54 2.32
13.06.   Kravchenko G. - Kumstat J. SF 3-6, 7-64, 6-2 1.95 1.77
12.06.   Kumstat J. - Moeller M. QF 7-65, 6-4 1.89 1.81
11.06.   Kumstat J. - Filip J. R16 6-2, 6-1 1.28 3.37
09.06.   Kumstat J. - Covato M. 1R 6-4, 6-3 1.04 10.12
  Prostejov challenger Round Result H A
02.06.   Sachko V. - Kumstat J. 1R 5-7, 6-0, 6-3 1.44 2.64
01.06.   Kumstat J. - Prihodko O. Q-R16 6-4, 610-7, 6-2 1.89 1.82
31.05.   Kumstat J. - Nam J. Q-1R 6-4, 6-4 1.12 5.50
  Prague 2 challenger Round Result H A
19.08.   Pauls / Vlieg - Kumst / Pecak R16 7-64, 3-6, 10-6 1.14 4.67
  Liberec challenger Round Result H A
29.07.   Dev S / Sinha - Kumst / Vrba R16 6-3, 1-6, 10-8 2.65 1.39
  Futures 2026 Round Result H A
25.07.   Kumst / Pecak - Shari / Tsits F 7-5, 7-64 1.61 2.12
24.07.   Kumst / Pecak - Motsn / Zakar SF 6-1, 7-61 1.48 2.47
23.07.   Kumst / Pecak - Doley / Fisch QF 6-1, 6-0 1.25 3.50
22.07.   Kumst / Pecak - Ihlen / Lapor R16 7-64, 6-3 1.08 6.09
  Bunschoten challenger Round Result H A
16.07.   Romio / Uesug - Barto / Kumst QF 6-4, 6-2 1.55 2.34
15.07.   Barto / Kumst - Campa / Uzhyl R16 6-3, 6-2 1.08 5.47
  Futures 2026 Round Result H A
27.06.   Kumst / Vrba - Neos / Tsits F 6-4, 6-3    
26.06.   Kumst / Vrba - Saban / Saban SF 6-4, 3-6, 10-7 2.93 1.34
25.06.   Kumst / Vrba - Chepe / Priho QF 1.85 1.85
24.06.   Kumst / Vrba - Bahra / Sulta R16 6-1, 6-1    
12.06.   Cerny / Hrazd - Klima / Kumst QF 6-1, 65-7, 11-9 1.84 1.84
09.06.   Klima / Kumst - Nagou / Sakel R16 6-4, 6-2 1.68 2.03
No matches.
 
  Futures 2025 Round Result H A
27.09.   Krumich M. - Kumstat J. SF 7-5, 6-2    
27.09.   Kumstat J. - Moeller M. QF 7-5, 6-4 2.16 1.62
26.09.   Kumstat J. - Vanshelboim E. R16 6-4, 6-4 1.54 2.30
24.09.   Kumstat J. - Doskocil M. 1R 6-4, 6-2 1.09 6.75
10.08.   Martin Manzano J. - Kumstat J. F 6-4, 63-7, 4-1 2.30 1.54
09.08.   Kumstat J. - Fiorentini A. SF 7-65, 6-1 1.17 4.45
08.08.   Kumstat J. - Michalik R. QF 6-2, 6-4 1.13 5.19
07.08.   Kumstat J. - Tadic V. R16 6-2, 6-2 1.07 7.02
06.08.   Kumstat J. - Homola P. 1R 6-4, 6-0 1.07 7.10
27.07.   Weis A. - Kumstat J. F 6-4, 66-7, 6-1 1.56 2.26
27.07.   Kumstat J. - Mazza M. SF 0-1 1.96 1.75
25.07.   Kumstat J. - Marmousez L. QF 7-5, 7-61 3.51 1.26
24.07.   Kumstat J. - Ferrari G. R16 6-3, 6-4 1.95 1.77
23.07.   Kumstat J. - Tabacco F. 1R 7-64, 5-7, 6-4 1.68 2.07
12.06.   Krumich M. - Kumstat J. R16 2-6, 6-3, 6-3 1.68 2.07
10.06.   Kumstat J. - Orlov V. 1R 7-65, 6-2 1.59 2.22
16.05.   Kellovsky D. - Kumstat J. QF 6-3, 3-6, 6-1 1.69 2.06
15.05.   Kumstat J. - Boros A. R16 6-4, 7-5 1.58 2.24
14.05.   Kumstat J. - Fernandez B. 1R 6-4, 7-64 1.12 5.41
  Prague 2 challenger Round Result H A
06.05.   Misolic F. - Kumstat J. 1R 6-4, 7-5 1.10 6.46
05.05.   Kumstat J. - Martinez A. Q-R16 6-4, 1-6, 6-4 2.43 1.51
04.05.   Kumstat J. - Squire H. Q-1R 5-7, 7-65, 6-1 6.21 1.10
  Ostrava challenger Round Result H A
01.05.   Piros Z. - Kumstat J. R16 6-3, 6-3 1.06 8.62
29.04.   Kumstat J. - Cassone M. 1R 6-4, 7-63 6.54 1.10
  Futures 2025 Round Result H A
15.04.   Mrva M. - Kumstat J. 1R 6-3, 6-1 1.17 4.83
09.04.   Fomin S. - Kumstat J. 1R 6-2, 6-2 1.19 4.27
  Futures 2025 Round Result H A
23.09.   Cizek / Paty - Klima / Kumst R16 68-7, 6-4, 10-4 2.35 1.52
08.08.   Van H / Vanka - Klima / Kumst SF 6-3, 7-5    
07.08.   Klima / Kumst - Hrazd / Ramsk QF 6-3, 7-5 2.21 1.58
06.08.   Klima / Kumst - Krajn / Skof R16 6-0, 6-1    
  Liberec challenger Round Result H A
31.07.   Pauls / Vrben - Brunc / Kumst QF 7-62, 7-64 1.28 3.37
30.07.   Brunc / Kumst - Cerny / Kucer R16 6-4, 6-4 1.56 2.25
  Futures 2025 Round Result H A
14.06.   Orlov / Roman - Kumst / Polja F 7-64, 6-1 1.84 1.84
13.06.   Kumst / Polja - Baum / Kalin SF 5-7, 6-1, 10-5 1.34 2.89
12.06.   Kumst / Polja - Einig / Parou QF 6-3, 6-3 1.03 8.50
11.06.   Kumst / Polja - Jupa / Vrba R16 6-3, 6-2    
17.05.   Barro / Nikle - Kumst / Petak F 7-66, 7-65 1.39 2.73
16.05.   Kumst / Petak - Fuele / Madar SF 6-0, 6-3 1.99 1.72
15.05.   Kumst / Petak - Boros / Kisan QF 6-3, 7-66 1.51 2.41
13.05.   Kumst / Petak - Ambar / Cerny R16 6-2, 6-2 1.36 2.92
18.04.   Sperl / Vanka - Kumst / Mrva SF 6-3, 6-4    
17.04.   Kumst / Mrva - Hanne / Vansh QF 6-1, 6-3 2.10 1.65
16.04.   Kumst / Mrva - Karol / Lanik R16 63-7, 6-4, 10-5 2.89 1.36
No matches.
 
  Liberec challenger Round Result H A
30.07.   Kym J. - Kumstat J. 1R 6-3, 6-0 1.08 7.06
  Prague 2 challenger Round Result H A
06.05.   Faria J. - Kumstat J. 1R 6-4, 6-2 1.08 7.65
  Ostrava challenger Round Result H A
22.04.   Skatov T. - Kumstat J. 1R 6-1, 6-2 1.11 6.10
No matches.
No matches.
 
  Prostejov challenger Round Result H A
04.06.   Valkusz M. - Kumstat J. Q-1R 6-4, 6-2 1.05 9.41
No matches.
No matches.
 
  Futures 2022 Round Result H A
28.09.   Jirousek T. - Kumstat J. 1R 6-4, 6-4 1.14 5.13
  Prostejov challenger Round Result H A
29.05.   Wessels L. - Kumstat J. Q-1R 6-3, 6-2 1.04 10.06
  Futures 2022 Round Result H A
29.09.   Juraj / Sinia - Kumst / Mrva QF 6-0, 2-6, 10-4 1.19 4.02
28.09.   Kumst / Mrva - Brayn / Tomes R16 3-6, 6-3, 10-5 2.98 1.32
No matches.
 
  • Injuries
Start Tournament Reason
01.04.2026 - 31.05.2026  Futures 2026 retired
27.01.2026 - 17.02.2026  Futures 2026 retired
10.08.2025 - 23.09.2025  Futures 2025 retired
 
 
 
 
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