Junior Tennis Database

Jan Kumstat

2025

US OPEN JUNIOR3R
WIMBLEDON JUNIOR2R
J300 ROEHAMPTON2R
ROLAND GARROS JUNIOR[15]1R
AUSTRALIAN OPEN JUNIOR[1]Quarter
J300 TRARALGON[1]3R

2024

J500 PLANTATION[3]2R
J300 BRADENTON[2]1R
J300 BEIJING[1]Semi
J500 OSAKA[1]Quarter
WIMBLEDON JUNIOR[6]2R
J300 PLOVDIV[1]Win
J500 CAIRO[1]2R
AUSTRALIAN OPEN JUNIORFinal
J300 TRARALGON2R

2023

J500 OSAKA1R
J300 BEIJING[6]Semi
J200 RAKOVNIK[2]Final
J300 PANCEVO2R
J300 PRAGUE[10]Quarter
J300 BAMBERG3R
J200 PIESTANY[10]Final
J300 PLOVDIV2R
J300 VILLENA2R
J300 CASABLANCA2R
J200 SIAULIAI[8]Semi
J200 BRATISLAVA[8]Semi

2022

J3 TRNAVA-2[5]2R
J2 SZEKESFEHERVARQuarter
J3 DUBROVNIK[8]1R
J2 RAKOVNIKQuarter
J3 PRAGUE-21R
J1 PRAGUE1R
J2 PILSEN2R
J3 SOBOTAQuarter
J3 CAKOVECSemi
J2 PIESTANYQuarter
J4 OSLO1R
J4 PUSZCZYKOWOQuarter
J5 PRAGUESemi

2021

J4 PSZCZYNA1R
J5 PREROV[6]1R
J5 PROSTEJOVQuarter
J2 RAKOVNIK1R
J5 OSTRAVA[5]Semi
J3 PRAGUE-22R

Nation

CZE

Generation

Born in 2007 (18-19 years old)

World Ranking

ATP Ranking　666th

Year-end Junior World Ranking

Rival

alexander vasilev (1-2)

  • [2025] US OPEN JUNIOR 5-7 6-4 6-7
  • [2025] J300ROEHAMPTON 4-6 6-3 3-6
  • [2024] WIMBLEDON JUNIOR 4-6 7-6 7-6

jakub filip (0-3)

  • [2023] J300PRAGUE 4-6 7-6 4-6
  • [2022] J5PRAGUE 4-6 7-5 4-6
  • [2021] J5OSTRAVA 6-7 4-6

dominick mosejczuk (2-0)

  • [2025] J300TRARALGON 6-1 6-2
  • [2024] J500PLANTATION 4-6 6-3 6-3

william rejchtman vinciguerra (1-1)

  • [2025] J300TRARALGON 7-6 5-7 2-6
  • [2023] J200SIAULIAI 6-4 6-4

izan almazan valiente (2-0)

  • [2024] J300PLOVDIV 6-4 4-6 6-2
  • [2023] J200RAKOVNIK 6-2 7-5

Match Details

US OPEN JUNIOR

W1RNicolas Arseneault6-2 7-6
W2RGavin Goode6-2 6-4
L3RAlexander Vasilev5-7 6-4 6-7

WIMBLEDON JUNIOR

W1RKriish Tyagi6-3 6-3
L2RJack Kennedy6-7 6-7

J300 ROEHAMPTON

W1RJack Secord6-2 6-3
L2RAlexander Vasilev4-6 6-3 3-6

ROLAND GARROS JUNIOR

L1RMax Schoenhaus4-6 7-5 4-6

AUSTRALIAN OPEN JUNIOR

W1RMaximus Dussault6-2 6-2
W2RCruz Hewitt6-3 7-6
W3RMoise Kouame6-3 3-6 6-3
LQFHenry Bernet6-7 6-7

J300 TRARALGON

W1RLuis Guto Miguel6-2 6-3
W2RDominick Mosejczuk6-1 6-2
L3RWilliam Rejchtman Vinciguerra7-6 5-7 2-6

J500 PLANTATION

W1RDominick Mosejczuk4-6 6-3 6-3
L2RTimofei Derepasko4-6 6-1 4-6

J300 BRADENTON

L1RSasha Colleu1-6 1-6

J300 BEIJING

W2RYe Chen6-3 6-1
W3RKerem Yilmaz6-3 6-3
WQFNikita Bilozertsev6-2 3-0
LSFOliver Bonding2-6 4-6

J500 OSAKA

W1RIlya Maltsev4-6 6-0 6-3
W2RHyu Kawanishi6-3 6-4
W3RShion Itsusaki6-4 6-4
LQFHoyoung Roh1-6 7-5 4-6

WIMBLEDON JUNIOR

W1RAlexander Vasilev4-6 7-6 7-6
L2RJagger Leach4-6 6-7

J300 PLOVDIV

W1RSergio Planella Hernandez6-4 6-4
W2RGabriel Ghetu6-4 6-3
WQFTheo Papamalamis7-6 7-5
WSFAnas Mazdrashki2-6 6-0 6-3
WFIzan Almazan Valiente6-4 4-6 6-2

J500 CAIRO

W1RLovro Maricic6-3 6-3
L2RPierluigi Basile6-4 5-7

AUSTRALIAN OPEN JUNIOR

W1RTianhui Zhang6-4 6-3
W2RCharlie Robertson6-7 7-6 6-3
W3RAlexander Razeghi7-6 6-2
WQFHayden Jones6-7 6-2 7-5
WSFMees Rottgering6-1 6-3
LFRei Sakamoto6-3 6-7 5-7

J300 TRARALGON

W1RJagger Leach6-3 6-4
L2RPavle Marinkov4-6 3-6

J500 OSAKA

L1RHayden Jones6-2 3-6 3-6

J300 BEIJING

W2REren Matthew Cheung6-1 6-4
W3RGoncalo Marques7-6 7-6
WQFOliver Bonding6-2 2-6 6-3
LSFBenjamin Gusic Wan3-6 1-6

J200 RAKOVNIK

W2RKrystof Svojgr6-4 6-4
W3RAndreas Loizas6-3 7-5
WQFLorenzo Angelini6-4 6-3
WSFIzan Almazan Valiente6-2 7-5
LFAdrien Berrut4-6 4-6

J300 PANCEVO

W1RDanial Rakhmatullayev6-2 6-2
L2RAnas Mazdrashki6-7 4-6

J300 PRAGUE

W2RJan Klimas7-5 6-4
W3RAleksa Pisaric6-7 7-6 6-2
LQFJakub Filip4-6 7-6 4-6

J300 BAMBERG

W1RManvydas Balciunas6-1 6-7 6-4
W2RMax Dahlin6-2 4-3
L3RDiego Dedura6-7 5-7

J200 PIESTANY

W2RNico Hipfl7-6 3-6 6-1
W3RYannik Kelm6-2 6-1
WQFSemen Aginskiy6-3 6-3
WSFIgnacio Parisca6-3 6-4
LFJan Hrazdil6-2 6-7 5-7

J300 PLOVDIV

W1RReiya Hattori6-2 6-2
L2RIliyan Radulov6-3 2-6 6-7

J300 VILLENA

W1RGiacomo Nosei6-2 2-6 6-3
L2RRoger Pascual Ferra1-6 2-6

J300 CASABLANCA

W1RIbrahim Benyahia6-3 6-0
L2RKevin Edengren4-6 3-6

J200 SIAULIAI

W1RErik Tkalenko5-7 6-0 6-4
W2RJulius Augunas6-4 6-3
WQFWilliam Rejchtman Vinciguerra6-4 6-4
LSFThijs Boogaard3-6 4-6

J200 BRATISLAVA

W1RZiga Svec6-3 6-2
W2ROskar Grzegorzewski6-4 6-4
WQFFilip Hanzelin6-3 7-6
LSFPetr Brunclik5-7 7-6 4-6

J3 TRNAVA-2

W1RValentin Faure6-7 6-3 6-3
L2RZiga Svec3-6 3-6

J2 SZEKESFEHERVAR

W1RLorant Gyori6-0 6-2
W2RFabio De Michele6-4 1-6 6-1
LQFYannik Kelm6-7 1-6

J3 DUBROVNIK

L1RPavel Lagutin6-3 3-6 4-6

J2 RAKOVNIK

W1RBence Juhasz6-0 6-0
W2RMatic Kriznik6-1 6-2
W3RDenis Petak5-7 6-4 6-0
LQFVit Kalina5-7 6-4 3-6

J3 PRAGUE-2

L1RVojtech Petr3-6 7-5 2-6

J1 PRAGUE

L1RMatic Kriznik2-6 6-4 5-7

J2 PILSEN

W1RGoncalo Marques6-4 6-2
L2RBranko Djuric3-6 6-4 2-6

J3 SOBOTA

W1RIgor Mandou Berranger5-7 6-3 6-3
W2RJeiden Saidizand6-3 6-7 6-4
LQFAdam Duda6-4 1-6 5-7

J3 CAKOVEC

W1RLovro Maricic6-3 6-0
W2RLucio Ratti6-3 6-2
WQFSasa Markovic6-3 6-2
LSFTomasz Berkieta2-6 3-6

J2 PIESTANY

W1RMarek Nano5-7 6-3 6-2
W2RNoah Merre6-4 6-7 6-2
W3RTomas Zlatohlavek1-6 6-4 6-3
LQFMaxim Mrva4-6 0-6

J4 OSLO

L1RSaba George Nanobashvili4-6 6-7

J4 PUSZCZYKOWO

W1RAlan Wazny6-4 6-4
W2RPiotr Czaczkowski6-7 6-4 6-3
LQFJuho Eric Biggs6-7 3-6

J5 PRAGUE

W1ROldrich Vejsicky6-3 6-4
W2RAndriy Poritskyy6-2 7-6
WQFVojtech Vales6-2 6-3
LSFJakub Filip4-6 7-5 4-6

J4 PSZCZYNA

L1RKacper Szymkowiak6-4 4-6 4-6

J5 PREROV

L1RMichal Curlej6-7 5-7

J5 PROSTEJOV

W1RKristian Janci3-6 6-2 6-1
W2ROldrich Vejsicky6-2 7-6
LQFJan Klimas3-6 6-4 4-6

J2 RAKOVNIK

L1RAlfred Almasi3-6 4-6

J5 OSTRAVA

W1ROndrej Kratochvil6-2 6-0
W2RFelipe Polach6-2 6-0
WQFJiri Cizek2-6 6-4 6-4
LSFJakub Filip6-7 4-6

J3 PRAGUE-2

W1ROliver Olsson7-5 6-3
L2RStepan Mruzek4-6 3-6

Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 10505, Number of registered players: 6,666, Number of registered results: 385,227