Karen Sieffert
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Naples, FL
64 matches · 29W–35L · seasons 2018–2026
Match history64 matches
Where you rank locallyagainst everyone at your level
Teams19 teams · 2019–2027
Over timerating by season, and how you rank
By level4 levels played
3.5
38.1%
8W–13L · 46.4% of games
7.0
66.7%
18W–9L · 58.3% of games
7.5
10%
1W–9L · 36.8% of games
7.0mixed
33.3%
2W–4L · 41% of games
Games won matters more than matches won — NTRP adjusts on margins.
By lineusually #2 Doubles, 38% of the time
#2 Doubles
38%
24 matches
#3 Doubles
30%
19 matches
#4 Doubles
19%
12 matches
#1 Doubles
14%
9 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.
Start where you are. Use what you have. Do what you can.