John D Zwerlein
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WALNUT CREEK, CA
48 matches · 9W–39L · seasons 2018–2025
Match history48 matches
Where you rank locallyagainst everyone at your level
Teams13 teams · 2019–2025
WALNUT CREEK RC/Walnut Creek TC 18AM3.0B
WALNUT CREEK RC/Walnut Creek TC 40AM3.0A
WILLOW PASS PK 40MX6.0A
Walnut Creek TC 18AM3.0B
DANVILLE TC/MONTE VISTA HS 18MX6.0A
DANVILLE TC/MONTE VISTA HS 40MX6.0A
WALNUT CREEK RC/Walnut Creek TC 18AM3.0B
WALNUT CREEK RC/Walnut Creek TC 40AM3.0B
PLEASANTON 18MX6.0B
WALNUT CREEK RC/ 18AM3.0B
WALNUT CREEK RC/Walnut Creek TC 40AM3.0B
NOVATO TC/PIONEER PK 18AM3.5A
NOVATO TC/PIONEER PK 40MX6.0A
Over timerating by season, and how you rank
By level3 levels played
3.0
21.4%
6W–22L · 32.7% of games
3.5
20%
1W–4L · 31.3% of games
6.0mixed
13.3%
2W–13L · 32.4% of games
Games won matters more than matches won — NTRP adjusts on margins.
By lineusually #2 Doubles, 40% of the time
#2 Doubles
40%
19 matches
#3 Doubles
38%
18 matches
#1 Doubles
19%
9 matches
#2 Singles
4%
2 matches
How often, across every team and every match we hold — including ones that do not count toward a rating. Advanced stats has a court-position table too, and it answers a different question: how well you do there, over matches that count. A team’s own page shows how that one team uses you.
Not affiliated with or endorsed by the USTA. Ratings labelled as published are USTA year-end figures; anything we describe as an estimate is ours, not USTA’s. Match data is from USTA TennisLink.
Tennis is a perfect combination of violent action taking place in an atmosphere of total tranquillity.