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Erin Duffy

Ada, MI
4.5C year-end 2025
i
Computer — generated by the USTA algorithm from match play
43 matches · 38W–5L · seasons 2022–2025

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Match history43 matches
W
2025-08-10 · #4 Doubles · with Jennifer Aleccia championship
expectation pending — we’re still fetching an opponent’s record
7-6, 6-3
L
2025-03-22 · MVC Glovick SSL A18-4.5WW · #1 Doubles · 4.5 · with Jennifer Aleccia
expectation pending — we’re still fetching an opponent’s record
6-7, 3-5
W
2025-03-15 · MVC Aleccia SSL A40-4.5WW · #1 Doubles · 4.5 · with Jennifer Aleccia
expectation pending — we’re still fetching an opponent’s record
7-6, 3-0
W
2025-03-01 · MVC Aleccia SSL A40-4.5WW · #1 Doubles · 4.5 · with Danielle Juhle
expectation pending — we’re still fetching an opponent’s record
3-6, 6-3, 1-0
W
2024-12-06 · MVC Lee FWL A18-4.0W · #3 Doubles · 4.0 · with Amy McKenzie
expectation pending — we’re still fetching an opponent’s record
6-4, 6-2
W
2024-08-25 · #3 Doubles · with Danielle Juhle championship
expectation pending — we’re still fetching an opponent’s record
6-2, 6-3
W
2024-08-24 · #2 Doubles · with Jennifer Aleccia championship
expectation pending — we’re still fetching an opponent’s record
6-4, 6-3
L
2024-08-23 · #3 Doubles · with Jennifer Aleccia championship
expectation pending — we’re still fetching an opponent’s record
6-7, 3-6
W
2024-08-10 · #2 Doubles · with Jennifer Aleccia championship
expectation pending — we’re still fetching an opponent’s record
7-5, 7-5
W
2024-08-10 · #3 Doubles · with Debbie Buchan championship
expectation pending — we’re still fetching an opponent’s record
6-2, 5-7, 1-0
W
Heather Davis / Julie Potter
2024-06-14 · MVC Lee SSL A18-4.0W · #2 Doubles · 4.0 · with Marie Shea
expectation pending — we’re still fetching an opponent’s record
6-3, 6-2
W
2024-06-02 · MVC Aleccia SSL M40-8.0X · #2 Doubles · 8.0 · with David Buchan mixed
doesn’t count toward your NTRP rating
6-3, 6-4
Where you rank locallyagainst everyone at your level
Teams18 teams · 2022–2025
MVC Aleccia SSL A40-4.5WW
2025 WMI SSL USTA League Adult 40&Over Weekend Leagues · WMI SSL A40&O 4.5 WW (6 player) · 40+
2025
MVC Glovick SSL A18-4.5WW
2025 WMI SSL USTA League Adult 18&Over Weekend Leagues · WMI SSL A18&O 4.5 WW (5 player) · 18+
2025
MVC Lee FWL A18-4.0W
2025 WMI FWL USTA League Adult 18&Over Weekday Leagues · WMI FWL A18&O 4.0 W (8 player) · 18+
2025
MVC Aleccia SSL A40-4.5WW
2024 WMI SSL USTA League Adult 40&Over Weekend Leagues · WMI SSL A40&O 4.5 WW (6 player) · 40+
2024
MVC Aleccia SSL M40-8.0X
2024 WMI SSL USTA League Mixed 40&Over Weekend Leagues · WMI SSL MXD 40&O 8.0 X (6 player) · 40+
2024
MVC Glovick SSL A18-4.5WW
2024 WMI SSL USTA League Adult 18&Over Weekend Leagues · WMI SSL A18&O 4.5 WW (5 player) · 18+
2024
MVC Lee FWL A18-4.0W
2024 WMI FWL USTA League Adult 18&Over Weekday Leagues · WMI FWL A18&O 4.0 W (8 player) · 18+
2024
MVC Lee SSL A18-4.0W
2024 WMI SSL USTA League Adult 18&Over Weekday Leagues · WMI SSL A18&O 4.0 W (8 player) · 18+
2024
MVS Barnes FWL A40-4.0W
2024 WMI FWL USTA League Adult 40&Over Weekday Leagues · WMI FWL A40&O 4.0 W (6 player) · 40+
2024
MVS Barnes SSL A40-4.0W
2024 WMI SSL USTA League Adult 40&Over Weekday Leagues · WMI SSL A40&O 4.0 W (6 player) · 40+
2024
MVC Aleccia SSL A40-4.5WW
2023 WMI SSL USTA League Adult 40&Over Weekend Leagues · WMI SSL A40&O 4.5 WW (6 player) · 40+
2023
MVC Lee FWL A18-4.0W
2023 WMI FWL USTA League Adult 18&Over Weekday Leagues · WMI FWL A18&O 4.0 W (8 player) · 18+
2023
MVC Lee SSL A18-4.0W
2023 WMI SSL USTA League Adult 18&Over Weekday Leagues · WMI SSL A18&O 4.0 W (8 player) · 18+
2023
MVC Lee FWL A18-4.0W
2022 WMI FWL USTA League Adult 18&Over Weekday Leagues · WMI FWL A18&O 4.0 W (8 player) · 18+
2022
MVC Lee SSL A18-4.0W
2022 WMI SSL USTA League Adult 18&Over Weekday Leagues · WMI SSL A18&O 4.0 W (8 player) · 18+
2022
MVR Baines FWL A18-4.0WW
2022 WMI FWL USTA League Adult 18&Over Weekend Leagues · WMI FWL A18&O 4.0 WW (8 player) · 18+
2022
MVS Barnes FWL A40-4.0W
2022 WMI FWL USTA League Adult 40&Over Weekday Leagues · WMI FWL A40&O 4.0 W (6 player) · 40+
2022
MVS Lee SSL A40-4.0W
2022 WMI SSL USTA League Adult 40&Over Weekday Leagues · WMI SSL A40&O 4.0 W (6 player) · 40+
2022
Over timerating by season, and how you rank
By level3 levels played
4.0
96.2%
25W–1L · 76.5% of games
4.5
60%
3W–2L · 54.3% of games
8.0mixed
3W–0L
not enough matches yet

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

By lineusually #3 Doubles, 33% of the time
#3 Doubles
33%
14 matches
#1 Doubles
28%
12 matches
#2 Doubles
23%
10 matches
#2 Singles
14%
6 matches
#4 Doubles
2%
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.

Pressure is a privilege.
Billie Jean King