Nombre: Jan Kumstat
País: Czech Republic
Fecha de nacimiento: 02.01.07, 19 años
ATP ranking: 679
TOP posición de la clasificación: 603 (20.04.26, 61 puntos)
Puntos: 49
Dinero del premio: 19262 $
Partidos totales: 88
ganar: 49
%: 55.68 %
País: Czech Republic
Fecha de nacimiento: 02.01.07, 19 años
ATP ranking: 679
TOP posición de la clasificación: 603 (20.04.26, 61 puntos)
Puntos: 49
Dinero del premio: 19262 $
Partidos totales: 88
ganar: 49
%: 55.68 %
| año | resumen | Difícil | Arcilla | I. difícil | Alfombra | Césped | Acrílico |
| 2026 | 10/7 | 6/4 | 2/1 | 2/2 | 0/0 | 0/0 | 0/0 |
| 2025 | 30/22 | 12/9 | 17/10 | 0/1 | 0/1 | 1/1 | 0/0 |
| 2024 | 9/6 | 5/1 | 0/3 | 3/1 | 0/0 | 1/1 | 0/0 |
| 2023 | 0/1 | 0/0 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2022 | 0/3 | 0/0 | 0/2 | 0/1 | 0/0 | 0/0 | 0/0 |
| TOTAL | 49/39 | 23/14 | 19/17 | 5/5 | 0/1 | 2/2 | 0/0 |
| porc. % | 55.68 % | 62.16 % | 52.78 % | 50 % | 0 % | 50 % | 0 % |
Jan Kumstat / programado / pasado
| No se encontraron partidos |
Jan Kumstat form
Jan Kumstat / últimos 50 partidos
| 02.06.26 | 1er ronda | Vitaliy Sachko | Jan Kumstat | 5-7, 6-0, 6-3 |  | match details |  Prostejov Challenger | Arcilla |
| 01.06.26 | calif. | Jan Kumstat | Oleg Prihodko | 6-4, 6-710, 6-2 |  | match details | ||
| 31.05.26 | c 1 | Jan Kumstat | Ji Sung Nam | 6-4, 6-4 | | match details | ||
| 01.04.26 | 1er ronda | Imanol Lopez Morillo | Jan Kumstat | 6-3, 5-5, Jan Kumstat - retirado | | match details |  M25 Heraklion | Difícil |
| 30.03.26 | fin | Henry Searle | Jan Kumstat | 6-2, 6-2 | | match details | M15 Heraklion | Difícil |
| 29.03.26 | 1/4 | Jan Kumstat | Miles Jones | 6-4, 7-65 | | match details | ||
| 29.03.26 | 1/2 | Jan Kumstat | Luca Staeheli | 6-1, 6-2 | | match details | ||
| 27.03.26 | 2da ronda | Jan Kumstat | Thijs Boogaard | 3-6, 7-5, 10-7 | | match details | ||
| 26.03.26 | 1er ronda | Jan Kumstat | Andrea Colombo | 7-64, 6-0 | | match details | ||
| 27.02.26 | 1/4 | Harry Wendelken | Jan Kumstat | 6-75, 6-1, 6-2 | | match details |  M25 Pszczyna | I. difícil |
| 26.02.26 | 2da ronda | Jan Kumstat | Brian Bozemoj | 6-4, 6-4 | | match details | ||
| 24.02.26 | 1er ronda | Jan Kumstat | Szymon Karpinski | 6-74, 7-62, 7-5 | | match details | ||
| 17.02.26 | 1er ronda | Henry Bernet | Jan Kumstat | 6-2, 6-3 | | match details |  M25 Trento | I. difícil |
| 27.01.26 | 1er ronda | Nicolas Tepmahc | Jan Kumstat | 6-2, 1-0, Jan Kumstat - retirado | | match details |  M15 Monastir | Difícil |
| 23.01.26 | 1/4 | Dimitris Sakellaridis | Jan Kumstat | 6-2, 6-1 | | match details | M15 Monastir | Difícil |
| 23.01.26 | 2da ronda | Jan Kumstat | Sergi Perez Contri | 7-5, 6-1 | | match details | ||
| 22.01.26 | 1er ronda | Jan Kumstat | Maksim Shin | 6-1, 6-4 | | match details | ||
| 27.11.25 | 2da ronda | Michael Geerts | Jan Kumstat | 7-62, 6-1 | | match details | Athens Challenger | Difícil |
| 25.11.25 | 1er ronda | Jan Kumstat | Maks Kasnikowski | 7-5, 4-6, 6-1 | | match details | ||
| 24.11.25 | calif. | Jan Kumstat | Andrin Casanova | 6-0, 6-1 | | match details | ||
| 11.11.25 | 1er ronda | Yannick Hanfmann | Jan Kumstat | 6-1, 6-3 | | match details |  Lyon Challenger | I. difícil |
| 05.11.25 | 1er ronda | Tiago Pereira | Jan Kumstat | 6-2, 2-6, 6-4 | | match details | M25 Monastir | Difícil |
| 04.11.25 | calif. | Jan Kumstat | Alaa Trifi | 6-75, 6-3, 10-8 | | match details | ||
| 03.11.25 | c 2 | Jan Kumstat | Vladimir Nikolenko | 6-1, 6-0 | | match details | ||
| 30.10.25 | 2da ronda | Arthur Gea | Jan Kumstat | 6-3, 6-4 | | match details | Monastir Challenger | Difícil |
| 28.10.25 | 1er ronda | Jan Kumstat | Aziz Ouakaa | 2-6, 6-2, 6-3 | | match details | ||
| 01.10.25 | 1er ronda | Markus Molder | Jan Kumstat | 7-66, 6-4 | | match details | M15 Monastir | Difícil |
| 27.09.25 | 1/4 | Jan Kumstat | Marvin Moeller | 7-5, 6-4 | | match details | M25 Pardubice | Arcilla |
| 27.09.25 | 1/2 | Martin Krumich | Jan Kumstat | 7-5, 6-2 | | match details | ||
| 26.09.25 | 2da ronda | Jan Kumstat | Eric Vanshelboim | 6-4, 6-4 | | match details | ||
| 24.09.25 | 1er ronda | Jan Kumstat | Martin Doskocil | 6-4, 6-2 | | match details | ||
| 03.09.25 | 3er ronda | Alexander Vasilev | Jan Kumstat | 7-5, 4-6, 7-67 | | match details |  U.S. Open | Difícil |
| 02.09.25 | 2da ronda | Jan Kumstat | Gavin Goode | 6-2, 6-4 | | match details | ||
| 01.09.25 | 1er ronda | Jan Kumstat | Nicolas Arseneault | 6-2, 7-63 | | match details | ||
| 10.08.25 | fin | Juan Cruz Martin Manzano | Jan Kumstat | 6-4, 6-73, 4-1, Jan Kumstat - retirado | | match details |  M15 Slovenska | Arcilla |
| 09.08.25 | 1/2 | Jan Kumstat | Andrea Fiorentini | 7-65, 6-1 | | match details | ||
| 08.08.25 | 1/4 | Jan Kumstat | Radovan Michalik | 6-2, 6-4 | | match details | ||
| 07.08.25 | 2da ronda | Jan Kumstat | Vladan Tadic | 6-2, 6-2 | | match details | ||
| 06.08.25 | 1er ronda | Jan Kumstat | Patrik Homola | 6-4, 6-0 | | match details | ||
| 27.07.25 | fin | Alexander Weis | Jan Kumstat | 6-4, 6-76, 6-1 | | match details | M15 Segrate | Arcilla |
| 27.07.25 | 1/2 | Jan Kumstat | Manuel Mazza | 0-1, Manuel Mazza - retirado | | match details | ||
| 25.07.25 | 1/4 | Jan Kumstat | Lilian Marmousez | 7-5, 7-61 | | match details | ||
| 24.07.25 | 2da ronda | Jan Kumstat | Gianmarco Ferrari | 6-3, 6-4 | | match details | ||
| 23.07.25 | 1er ronda | Jan Kumstat | Fausto Tabacco | 7-64, 5-7, 6-4 | | match details | ||
| 08.07.25 | 2da ronda | Jack Kennedy | Jan Kumstat | 7-64, 7-68 | | match details |  Wimbledon (juniors) | Césped |
| 05.07.25 | 1er ronda | Jan Kumstat | Kriish Tyagi | 6-3, 6-3 | | match details | ||
| 12.06.25 | 2da ronda | Martin Krumich | Jan Kumstat | 2-6, 6-3, 6-3 | | match details | M25 Ceska | Arcilla |
| 10.06.25 | 1er ronda | Jan Kumstat | Vladyslav Orlov | 7-65, 6-2 | | match details | ||
| 02.06.25 | 1er ronda | Max Schoenhaus | Jan Kumstat | 6-4, 5-7, 6-4 | | match details | French Open | Arcilla |
| 16.05.25 | 1/4 | Dominik Kellovsky | Jan Kumstat | 6-3, 3-6, 6-1 | | match details |  M15 Szentendre | Arcilla |