William Koefoed
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KAMAS, UT
30 matches · 13W–17L · seasons 2018–2023
Match history30 matches
Teams13 teams · 2019–2024
Over timerating by season, and how you rank
By level3 levels played
3.5
21.4%
3W–11L · 36.2% of games
6.0mixed
88.9%
8W–1L · 61.7% of games
7.0mixed
28.6%
2W–5L · 40.3% of games
Games won matters more than matches won — NTRP adjusts on margins.
By lineusually #1 Doubles, 47% of the time
#1 Doubles
47%
14 matches
#2 Doubles
40%
12 matches
#3 Doubles
13%
4 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.
What matters isn’t how well you play when you’re playing well. What matters is how well you play when you’re playing badly.