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Jason Efstathiou

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Winchester, MA
3.5S year-end 2026
i
Self-rated, or a medical appeal
9 matches · 3W–6L · seasons 2023–2026
Match history9 matches
W
2026-07-28 · WSTC:Winchester Swim &Tennis Club:Hadas · #2 Doubles · 3.5 · with Matt Gordon
loading the estimate
6-1, 6-2
W
2026-07-09 · WSTC:Winchester Swim &Tennis Club:Hadas · #1 Doubles · 3.5 · with Matt Gordon
loading the estimate
7-6, 4-6, 1-0
L
2026-07-02 · WSTC:Winchester Swim &Tennis Club:Hadas · #2 Doubles · 3.5 · with Jae Chung
loading the estimate
4-6, 1-6
W
2026-06-25 · WSTC:Winchester Swim &Tennis Club:Hadas · #2 Doubles · 3.5 · with Kurt MacHemer
loading the estimate
6-2, 6-2
L
2026-06-18 · WSTC:Winchester Swim &Tennis Club:Hadas · #1 Doubles · 3.5 · with Matt Gordon
loading the estimate
2-6, 4-6
L
2026-05-28 · WSTC:Winchester Swim &Tennis Club:Hadas · #1 Doubles · 3.5 · with Fabio Sala
loading the estimate
5-7, 1-6
L
2026-05-21 · WSTC:Winchester Swim &Tennis Club:Hadas · #1 Singles · 3.5
loading the estimate
0-6, 6-4, 0-1
L
2023-04-14 · WTC:Winchester White:McCusker · #3 Doubles · 7.0 · with Myriam Efstathiou mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
4-6, 4-6
L
2023-03-03 · WTC:Winchester White:McCusker · #2 Doubles · 7.0 · with Myriam Efstathiou mixed
no estimate for this season
i
Our model did not follow this player through that season: none of their matches that season carried an individual NTRP level (55 & Over and combo leagues are rated on combined levels), so it had nothing to start from. The match still counts toward the USTA rating.
5-7, 4-6
Where you rank locallyagainst everyone at your level
Teams2 teams · 2023–2026
Over timerating by season, and how you rank
By level2 levels played
3.5
42.9%
3W–4L · 46.8% of games
7.0mixed
0W–2L
not enough matches yet

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

By lineusually #2 Doubles, 44% of the time
#2 Doubles
44%
4 matches
#1 Doubles
33%
3 matches
#1 Singles
11%
1 match
#3 Doubles
11%
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 have to take the initiative and play your game. Confidence is just believing you can do it.
Chris Evert