Katherine Shaffer
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Boulder, CO
21 matches · 10W–11L · seasons 2019–2026
Match history21 matches
Where you rank locallyagainst everyone at your level
Teams8 teams · 2019–2026
Over timerating by season, and how you rank
By level1 level played
4.0
47.6%
10W–11L · 47% of games
Games won matters more than matches won — NTRP adjusts on margins.
By lineusually #1 Doubles, 43% of the time
#1 Doubles
43%
9 matches
#2 Doubles
33%
7 matches
#3 Doubles
19%
4 matches
#1 Singles
5%
1 match
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.