Jan Kumstat
ATP #184Elo#1221647
Glicko-2#1921601 RD ±62.7
19 yrs · right-handed · strongest on Clay · 76–46 career · peak Elo 1675 · last 2026-08-31
Jan Kumstat is ATP No. 184, ranked #122 by Elo (1647) and #192 by Glicko-2 (1601). Career record 76–46.
Elo — overall & by surface
Form is a separate 52-week race in which every player restarts level — it tracks the last year’s gains, not overall level, so it is not comparable to the ratings above.
Glicko-2 — rating & deviation
Rating deviation ±62.7 — lower means more certain.
Rankings · Elo / Glicko
Official (ATP)#184
Overall#122 / #192
Form · 52w race#5 / #25
Hard#609 / #681
Clay#37 / #40
Grass#258 / #354
Career
Peak Elo1675 2026-08-22
Overall W–L76–46 62%
Hard28–19 60%
Clay46–24 66%
Grass2–2 50%
Honours · career
Career high ATP#184
◆ Recent results
LClay v 
Juan Pablo Varillas4-6 3-6
Juan Pablo Varillas4-6 3-6WClay v 
Chun Hsin Tseng5-7 6-3 6-0
Chun Hsin Tseng5-7 6-3 6-0WClay v 
Filip Cristian Jianu6-1 6-4
Filip Cristian Jianu6-1 6-4WClay v Maxim Mrva6-1 7-5
Maxim Mrva6-1 7-5WClay v 
Sumit Nagal7-5 6-3
Sumit Nagal7-5 6-3WClay v Petr Brunclik7-5 6-1
Petr Brunclik7-5 6-1WClay v 
Marvin Moeller4-6 7-6 7-5
Marvin Moeller4-6 7-6 7-5WClay v 
Matheus Pucinelli De Almeida6-4 5-7 6-2
Matheus Pucinelli De Almeida6-4 5-7 6-2WClay v 
Carlos Taberner7-5ret.
Carlos Taberner7-5ret.WClay v 
Max Houkes6-4 7-6
Max Houkes6-4 7-6WClay v Jamie Mackenzie6-7 6-3 6-3
Jamie Mackenzie6-7 6-3 6-3WClay v Tom Zeuch3-6 7-6 6-3
Tom Zeuch3-6 7-6 6-3◆ Upcoming
No upcoming matches on the board.