ATP · GER · U · 24.4 yrs

John Sperle

Rank

#822

Elo

1588

Serve skill

0.007 ±1.380

Return skill

0.078 ±1.387

Points observed

5,064

Hard Elo

1544

Clay Elo

1576

Grass Elo

1588

The ± bands are the rating engine's uncertainty — they widen during absences and tighten with play. We show them instead of pretending the point estimate is exact.

Season record

4-3

Clay

3-2

Hard

1-1

Career

13-21

Titles

Best rank

#660

Rest days

Matches (14d)

Last 10 matches

Wvs Federico Arnaboldi · Naples CH · Clay6-4 6-7(2) 6-22026-03-23

Lvs Jakub Paul · Naples CH · Clay5-7 7-6(2) 6-22026-03-23

Wvs Stefan Palosi · Zadar CH · Clay6-1 4-6 7-6(5)2026-03-16

Wvs Stefan Popovic · Zadar CH · Clay1-6 7-6(3) 6-12026-03-16

Lvs Martin Krumich · Zadar CH · Clay7-5 6-42026-03-16

Wvs Adrian Oetzbach · Koblenz CH · Hard7-6(4) 6-32026-02-02

Lvs Liam Gavrielides · Koblenz CH · Hard6-3 7-52026-02-02

Lvs Henri Squire · Braga CH · Clay6-4 6-12025-09-29

Wvs Emilien Demanet · Targu Mures 2 CH · Clay5-7 6-1 7-52025-09-16

Lvs Jack Loge · Targu Mures 2 CH · Clay6-2 7-6(3)2025-09-16

As of 2026-07-13 01:03 UTC · For informational purposes only; not betting advice.