Jan Kumstat is 25–7 in 2026 across 10 tournaments, winning 3 titles. Career: 48–20 (70.6%) with 3 titles.
2026 Record
25–7
78.1% win rate
2026 Titles
3
10 events played
Career Record
48–20
3 titles
Career High
—
Jan Kumstat's 2026 season
| Tournament | Surface | Result | W–L | Dates |
|---|---|---|---|---|
| Seoul, Korea Republic | grass | R32 | 0–1 | Oct 27 |
| Lyon, France | indoor_hard | QL1 | 0–1 | Oct 18 |
| Olbia, Italy | hard | R16 | 1–1 | Oct 13 |
| Como, Italy | grass | R32 | 0–1 | Aug 31 |
| Prague, Czech Republic | clay | Won | 5–0 | Aug 18 |
| Hamburg, Germany | clay | Won | 7–0 | Aug 9 |
| Liberec, Czech Republic | clay | Won | 5–0 | Jul 27 |
| Bunschoten, Netherlands | clay | SF | 5–1 | Jul 12 |
| Troyes, France | clay | QL1 | 0–1 | Jun 28 |
| Prostejov, Czech Republic | clay | R32 | 2–1 | May 31 |
2026 serve & return
Service points won
68.0%
No. 43 of 684
Return points won
30.1%
Aces per match
7.9
Break points saved
72.5%
Members
Jan Kumstat ranks in the 96th percentile on serve. See every split.
Full career history back to their first tour match, surface and opponent splits, rivalries, per-match serve and return numbers, percentile ratings and the custom model.
Frequently asked questions about Jan Kumstat
How old is Jan Kumstat?
Jan Kumstat is 19 years old, born January 2, 2007.
Where is Jan Kumstat from?
Jan Kumstat represents Czechia.
What is Jan Kumstat's ranking?
Jan Kumstat is ranked No. 189 on the ATP singles ranking with 302 points.
What is Jan Kumstat's career record?
Jan Kumstat has a career singles record of 48–20 (70.6%) with 3 titles from 4 finals.
How is Jan Kumstat doing in 2026?
Jan Kumstat is 25–7 in 2026 with 3 titles from 10 tournaments.
Is Jan Kumstat left-handed or right-handed?
Jan Kumstat is right-handed.
Who did Jan Kumstat play last?
Jan Kumstat lost to Sho Shimabukuro at Seoul, Korea Republic on October 27, 2026.
Stats updated daily · 2026 season through October 27, 2026