Joanie Costamagna
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Greenbrae, CA
90 matches · 46W–44L · seasons 2019–2025
Match history90 matches
Where you rank locallyagainst everyone at your level
Teams28 teams · 2019–2026
Over timerating by season, and how you rank
By level6 levels played
4.0
60.5%
23W–15L · 54.3% of games
4.5
25%
1W–3L · 40.3% of games
7.5
66.7%
6W–3L · 62.1% of games
8.0
42.1%
8W–11L · 48.1% of games
8.5
44.4%
4W–5L · 47.1% of games
8.0mixed
36.4%
4W–7L · 51.2% of games
Games won matters more than matches won — NTRP adjusts on margins.
By lineusually #1 Doubles, 72% of the time
#1 Doubles
72%
65 matches
#2 Doubles
20%
18 matches
#3 Doubles
8%
7 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.
Experience is a big word. I think it comes with time, and I have that.