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William Duffy

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Devon, PA
3.0C year-end 2025
i
Computer — generated by the USTA algorithm from match play
55 matches · 36W–19L · seasons 2021–2026
Match history55 matches
W
2026-08-22 · UMLY SSA 3.0M · #2 Doubles · 3.0 · with Declan Duffy championship
loading the estimate
6-4, 6-2
W
2026-08-21 · UMLY SSA 3.0M · #2 Doubles · 3.0 · with Declan Duffy championship
loading the estimate
6-0, 6-3
W
2026-08-21 · UMLY SSA 3.0M · #1 Doubles · 3.0 · with Vincent DeMarco championship
loading the estimate
6-4, 6-1
W
2026-07-19 · UMLY SSA 3.0M · #1 Doubles · 3.0 · with Declan Duffy championship
loading the estimate
6-2, 6-0
W
2026-07-18 · UMLY SSA 3.0M · #3 Doubles · 3.0 · with Declan Duffy championship
loading the estimate
3-6, 7-6, 1-0
W
Default
2026-07-05 · UMLY SSA 3.0M · #2 Doubles · 3.0 · with Branavan Ganesan
doesn’t count toward your NTRP rating
6-0, 6-0
W
2026-06-06 · UMLY SSA 3.0M · #2 Doubles · 3.0 · with Paul Poulin
loading the estimate
6-1, 6-2
L
2026-04-18 · UMLY SSA 3.0M · #1 Doubles · 3.0 · with Francisco Urquidi
loading the estimate
7-6, 3-6, 0-1
W
2026-03-07 · Wild Aces · #2 Doubles · 7.0 · with Jeong Duffy mixed
doesn’t count toward your NTRP rating
7-6, 6-3
W
Default
2026-02-07 · Wild Aces · #3 Doubles · 7.0 · with Colleen Kramer mixed
doesn’t count toward your NTRP rating
6-0, 6-0
L
2026-01-24 · Wild Aces · #2 Doubles · 7.0 · with Jeong Duffy mixed
doesn’t count toward your NTRP rating
6-7, 5-7
W
2025-11-08 · Some Strings Attached 7.0 · #3 Doubles · 7.0 · with Ashley Blanchard-Ruggieri mixed
doesn’t count toward your NTRP rating
6-0, 7-5
Where you rank locallyagainst everyone at your level
Teams6 teams · 2022–2026
Over timerating by season, and how you rank
By level4 levels played
3.0
77.3%
17W–5L · 63.3% of games
3.5
45.5%
5W–6L · 48.7% of games
6.0mixed
2W–1L
not enough matches yet
7.0mixed
63.2%
12W–7L · 55.8% of games

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

By lineusually #1 Doubles, 40% of the time
#1 Doubles
40%
22 matches
#3 Doubles
31%
17 matches
#2 Doubles
27%
15 matches
#2 Singles
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.

You always want to win. That is why you play tennis, because you love the sport and try to be the best you can.
Roger Federer