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JK
Jan Kumstat
CZE ▼ 302 ptsW
1-0won-lost
100%win rate
W1streak
1matches
Hard 1-0
Best win: Josef Schwaerzler Joel (#172)
Career
24-26career 2015 to June 2026 (48%)
0titles
#642best ranking
ITF 21-17Challenger 3-9
Clay 12-13Hard 12-12Carpet 0-1
Best career win: Murphy Cassone (#204, 2025)
| Year | W-L |
|---|---|
| 2026 | 7-4 |
| 2025 | 16-17 |
| 2024 | 1-4 |
| 2022 | 0-1 |
Career data to June 2026: Tennis Abstract / Jeff Sackmann, CC BY-NC-SA 4.0 · main draw matches only, aggregated by Beyond100.
Results
2026-11-02 · Round of 32 · Hard court · 50% of games ›
Josef Schwaerzler JoelAUT · #172
566
Jan KumstatCZE · #189
737
1 tie-break