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Jan Kumstat

Jan Kumstat

Czech Republic

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All M15 Monastir 2 ITF Men Singles M15 Monastir 3 ITF Men Singles M25 Trento ITF Men Singles M25 Pszczyna ITF Men Singles M15 Heraklion 3 ITF Men Singles M25 Heraklion 2 ITF Men Singles Prostejov Challenger Men Singles M25 Ceska Lipa ITF Men Singles M25 Klosters ITF Men Singles M25 Zagreb (Croatia) ITF Men Singles Troyes Challenger Men Singles Bunschoten Challenger Men Singles M25 Ollersbach ITF Men Singles Liberec Challenger Men Singles Hamburg Challenger Men Singles Prague Challenger Men Singles Como Challenger Men Singles Olbia Challenger Men Singles Lyon (France) - Qualification ATP Singles Seoul Challenger Men Singles

January 2026

Thu 22 Finished J. Kumstat Jan Kumstat 2:0 6-1 6-4 Maxim Shin M. Shin
  1. Win
Fri 23 Finished J. Kumstat Jan Kumstat 2:0 7-5 6-1 Sergi Perez Contri S. Perez Contri
  1. Win
Fri 23 Finished J. Kumstat Jan Kumstat 0:2 2-6 1-6 Dimitris Sakellaridis D. Sakellaridis
  1. Loss
Tue 27 Retired N. Tepmahc Nicolas Tepmahc 1:0 6-2 1-0 Jan Kumstat J. Kumstat
  1. Loss

February 2026

Tue 17 Finished J. Kumstat Jan Kumstat 0:2 2-6 3-6 Henry Bernet H. Bernet
  1. Loss
Tue 24 Finished J. Kumstat Jan Kumstat 2:1 6-7 7-6 7-5 S. Karpinski
  1. Win
Thu 26 Finished J. Kumstat Jan Kumstat 2:0 6-4 6-4 B. Bozemoj
  1. Win
Fri 27 Finished H. Wendelken Harry Wendelken 2:1 6-7 6-1 6-2 Jan Kumstat J. Kumstat
  1. Loss

March 2026

Thu 26 Finished J. Kumstat Jan Kumstat 2:0 7-6 6-0 Andrea Colombo A. Colombo
  1. Win
Fri 27 Finished J. Kumstat Jan Kumstat 2:1 3-6 7-5 10-7 Thijs Boogaard T. Boogaard
  1. Win
Sun 29 Finished J. Kumstat Jan Kumstat 2:0 6-4 7-6 Miles Jones M. Jones
  1. Win
Sun 29 Finished L. Staeheli Luca Staeheli 0:2 1-6 2-6 Jan Kumstat J. Kumstat
  1. Win
Mon 30 Finished H. Searle Henry Searle 2:0 6-2 6-2 Jan Kumstat J. Kumstat
  1. Loss

April 2026

Wed 1 Retired J. Kumstat Jan Kumstat 0:1 3-6 5-5 Imanol Lopez Morillo I. Lopez Morillo
  1. Loss

May 2026

Sun 31 Cancelled J. Kumstat Jan Kumstat Sebastian Sorger S. Sorger
Sun 31 Finished J. Kumstat Jan Kumstat 2:0 6-4 6-4 S. Nam Ji
  1. Win

June 2026

Mon 1 Finished O. Prihodko Oleg Prihodko 1:2 4-6 7-6 2-6 Jan Kumstat J. Kumstat
  1. Win
Tue 2 Finished V. Sachko Vitaliy Sachko 2:1 5-7 6-0 6-3 Jan Kumstat J. Kumstat
  1. Loss
Tue 9 Finished J. Kumstat Jan Kumstat 2:0 6-4 6-3 Matteo Covato M. Covato
  1. Win
Thu 11 Finished J. Filip Jakub Filip 0:2 2-6 1-6 Jan Kumstat J. Kumstat
  1. Win
Fri 12 Finished J. Kumstat Jan Kumstat 2:0 7-6 6-4 Marvin Moeller M. Moeller
  1. Win
Sat 13 Finished G. Kravchenko Georgii Kravchenko 2:1 3-6 7-6 6-2 Jan Kumstat J. Kumstat
  1. Loss
Wed 17 Finished J. Kumstat Jan Kumstat 2:0 6-4 7-6 C. Denolly
  1. Win
Thu 18 Finished K. Wehnelt Kai Wehnelt 2:0 6-3 6-2 Jan Kumstat J. Kumstat
  1. Loss
Tue 23 Finished J. Kumstat Jan Kumstat 1:2 1-6 6-1 3-6 Duje Markovina D. Markovina
  1. Loss
Sun 28 Finished J. Kumstat Jan Kumstat 0:2 6-7 2-6 P. Lagutin
  1. Loss

July 2026

Sun 12 Finished L. Raquillet Leo Raquillet 0:2 6-7 4-6 Jan Kumstat J. Kumstat
  1. Win
Mon 13 Finished M. Alves Mateus Alves 0:2 3-6 3-6 Jan Kumstat J. Kumstat
  1. Win
Tue 14 Finished H. Squire Henri Squire 0:2 3-6 1-6 Jan Kumstat J. Kumstat
  1. Win
Thu 16 Finished J. Kumstat Jan Kumstat 2:1 6-7 6-4 6-4 Florian Broska F. Broska
  1. Win
Fri 17 Finished J. Kumstat Jan Kumstat 2:0 6-1 6-1 Thijs Boogaard T. Boogaard
  1. Win
Sat 18 Finished T. Gentzsch Tom Gentzsch 2:0 7-5 6-4 Jan Kumstat J. Kumstat
  1. Loss
Wed 22 Finished Y. Inui Yuichiro Inui 0:2 4-6 2-6 Jan Kumstat J. Kumstat
  1. Win
Thu 23 Walkover V. Orlov Vladyslav Orlov L:W Jan Kumstat J. Kumstat
  1. Win
Fri 24 Finished J. Kumstat Jan Kumstat 1:2 6-1 6-7 2-6 Mathys Erhard M. Erhard
  1. Loss
Mon 27 Finished Z. Kolar Zdenek Kolar 1:2 2-6 6-4 3-6 Jan Kumstat J. Kumstat
  1. Win
Wed 29 Finished J. Kumstat Jan Kumstat 2:0 6-4 6-2 Thiago Seyboth Wild T. Seyboth Wild
  1. Win
Fri 31 Finished J. Kumstat Jan Kumstat 2:0 6-4 7-5 F. Ferreira Silva
  1. Win

August 2026

Sat 1 Finished J. Kumstat Jan Kumstat 2:0 7-5 6-4 Sumit Nagal S. Nagal
  1. Win
Sun 2 Finished J. Kumstat Jan Kumstat 2:0 6-3 6-1 Gonzalo Bueno G. Bueno
  1. Win
Sun 9 Finished J. Kumstat Jan Kumstat 2:0 6-2 7-6 Alan Wazny A. Wazny
  1. Win
Mon 10 Finished J. Kumstat Jan Kumstat 2:1 3-6 7-6 6-3 T. Zeuch
  1. Win
Tue 11 Finished J. Mackenzie 1:2 7-6 3-6 3-6 Jan Kumstat J. Kumstat
  1. Win
Thu 13 Finished J. Kumstat Jan Kumstat 2:0 6-4 7-6 Max Houkes M. Houkes
  1. Win
Fri 14 Retired C. Taberner Carlos Taberner 0:1 5-7 Jan Kumstat J. Kumstat
  1. Win
Sat 15 Finished M. Pucinelli de Almeida Matheus Pucinelli de Almeida 1:2 4-6 7-5 2-6 Jan Kumstat J. Kumstat
  1. Win
Sun 16 Finished J. Kumstat Jan Kumstat 2:1 4-6 7-6 7-5 Marvin Moeller M. Moeller
  1. Win
Tue 18 Finished P. Brunclik 0:2 5-7 1-6 Jan Kumstat J. Kumstat
  1. Win
Wed 19 Finished J. Kumstat Jan Kumstat 2:0 7-5 6-3 Sumit Nagal S. Nagal
  1. Win
Thu 20 Finished M. Mrva 0:2 1-6 5-7 Jan Kumstat J. Kumstat
  1. Win
Fri 21 Finished J. Kumstat Jan Kumstat 2:0 6-1 6-4 Cristian Jianu Filip F. C. Jianu
  1. Win
Sat 22 Finished C. H. Tseng Hsin Tseng Chun 1:2 7-5 3-6 0-6 Jan Kumstat J. Kumstat
  1. Win
Mon 31 Finished J. P. Varillas Pablo Varillas Juan 2:0 6-4 6-3 Jan Kumstat J. Kumstat
  1. Loss

October 2026