ATP · Rank #508
Jan Kumstat
Challenger Hamburg Germany Clay Challenger Hamburg Germany (Clay) 6 matches
M. Pucinelli de
J. Kumstat
(Q) 
C. Taberner
J. Kumstat
(Q)
J. Kumstat
(Q) 
M. Houkes
J. Mackenzie
(WC)
J. Kumstat
J. Kumstat
T. Zeuch
J. Kumstat
A. Wazny
Challenger Liberec Czech Republic Clay Challenger Liberec Czech Republic (Clay) 5 matches
J. Kumstat
(WC) 
G. Bueno
(2)
J. Kumstat
(WC) 
S. Nagal
(7)
J. Kumstat
(WC) 
F. Ferreira
(8)
J. Kumstat
(WC)
T. Seyboth Wild
Z. Kolar
J. Kumstat
ITF Men M25 Ollersbach Clay ITF Men M25 Ollersbach (Clay) 2 matches
Challenger Bunschoten Netherlands Clay Challenger Bunschoten Netherlands (Clay) 6 matches
T. Gentzsch
(5)
J. Kumstat
(Q)
J. Kumstat
(Q)
T. Boogaard
(WC)
J. Kumstat
(Q)
F. Broska
H. Squire
(7)
J. Kumstat
M. Alves
(3)
J. Kumstat
(11) 
L. Raquillet
J. Kumstat
Challenger Troyes France Qualifying Clay Challenger Troyes France Qualifying (Clay) 1 match
ITF Men M25 Zagreb Clay ITF Men M25 Zagreb (Clay) 1 match
From the matches in our database
Jan Kumstat is a 19-year-old right-handed professional tennis player, currently ranked world No. 508. The serve is the main weapon: 7.6 aces per match and 77.4% of first-serve points won over the last 52 weeks. Breaking is the real weapon here: 35.9% of break chances get taken. Across everything played, 62% of all points end up on this side of the net. The record is spread evenly across surfaces — Hard 9-6, Clay 19-7.
Right now the run is going well: 5 wins from the last 5 completed matches. The longest match we have on record ran to 33 games, against F. Broska. More of the matches we cover came at Challenger Liberec Czech Republic than anywhere else — 5 of them. Predictions cover match winner and score, alongside serve, return and break-point statistics. Most recently seen in our data at Challenger Hamburg Germany.
Frequently Asked Questions
How accurate are the AI predictions for Jan Kumstat?
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Our model has graded 40 matches involving Jan Kumstat and got 29 right — a hit rate of 72.5%. The 21 most recent are listed below, each with the pick we made and how it finished.
Who has Jan Kumstat played most often?
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Of the matches we cover, Jan Kumstat has met Thijs Boogaard most often — 2 times, with a 2-0 record.