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Karin Duke

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Tulsa, OK
3.5C year-end 2025
i
Computer — generated by the USTA algorithm from match play
217 matches · 128W–89L · seasons 2019–2026
Match history217 matches
L
2026-10-28 · Knox/LF/40&over3.5W · #3 Doubles · 3.5 · with Mia Vahlberg
loading the estimate
2-6, 2-6
W
2026-10-22 · Knox/LF/40&over3.5W · #1 Doubles · 3.5 · with Vanessa Hutto
loading the estimate
7-6, 4-6, 1-0
W
2026-10-08 · Knox/LF/40&over3.5W · #4 Doubles · 3.5 · with Mia Vahlberg
loading the estimate
6-4, 6-2
L
2026-08-07 · Mullenix 55s 7.0X/LF · #3 Doubles · 7.0 · with Chuck Clark mixed
doesn’t count toward your NTRP rating
2-6, 1-6
L
2026-08-02 · Mullenix 55s 7.0X/LF · #2 Doubles · 7.0 · with Brad Beaird mixed
doesn’t count toward your NTRP rating
4-6, 6-4
L
2026-07-12 · Mullenix 55s 7.0X/LF · #2 Doubles · 7.0 · with Ed Vestal mixed
doesn’t count toward your NTRP rating
2-6, 7-5, 0-1
L
2026-06-08 · #3 Doubles · 7.0 · with Jackie Knox championship
loading the estimate
3-6, 2-6
W
2026-06-02 · #3 Doubles · 7.0 · with Jackie Knox championship
loading the estimate
7-6, 3-6, 1-0
L
2026-05-30 · Tulsa/Mullenix 65 7.0W/LF · #2 Doubles · 7.0 · with Vanessa Hutto championship
loading the estimate
6-7, 1-6
W
2026-05-30 · Tulsa/Mullenix 65 7.0W/LF · #3 Doubles · 7.0 · with Roxanna Hanseth championship
loading the estimate
6-2, 4-6, 1-0
W
2026-05-14 · Kolman/LF 18s 3.5W · #3 Doubles · 3.5 · with Jackie Knox
loading the estimate
6-1, 6-0
L
2026-05-02 · 2. Duke 55s 7.0/LF · #3 Doubles · 7.0 · with Tammy Preaus
loading the estimate
3-6, 6-0, 0-1
Where you rank locallyagainst everyone at your level
Teams53 teams · 2019–2027
Over timerating by season, and how you rank
By level8 levels played
2.5
36.4%
4W–7L · 41.4% of games
3.5
73.4%
58W–21L · 58.5% of games
7.0
66.7%
38W–19L · 55.7% of games
8.0
28%
7W–18L · 39.8% of games
5.0mixed
1W–0L
not enough matches yet
5.5mixed
80%
4W–1L · 54.8% of games
7.0mixed
47.1%
16W–18L · 46.8% of games
8.0mixed
0%
0W–5L · 21.1% of games

Games won matters more than matches won — NTRP adjusts on margins.

By lineusually #1 Doubles, 36% of the time
#1 Doubles
36%
79 matches
#2 Doubles
36%
78 matches
#3 Doubles
25%
55 matches
#4 Doubles
2%
5 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.
Arthur Ashe