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Betsy Costello

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Worcester, MA
3.5C year-end 2025
i
Computer — generated by the USTA algorithm from match play
99 matches · 58W–41L · seasons 2018–2026
Match history99 matches
L
2026-05-18 · WESB:Western Tennis Sisters:Nichols/June · #1 Doubles · 7.0 · with Debbi Molinaro
loading the estimate
1-6, 2-6
L
2025-12-12 · WESB:Westboro:Khuu · #3 Doubles · 7.0 · with Neil Proulx mixed
doesn’t count toward your NTRP rating
2-6, 6-3, 0-1
W
2025-11-28 · WESB:Westboro:Khuu · #3 Doubles · 7.0 · with Leonard ONeil mixed
doesn’t count toward your NTRP rating
5-7, 5-4, 1-0
L
2025-09-05 · WESB:Westboro:Khuu · #3 Doubles · 7.0 · with Leonard ONeil mixed
doesn’t count toward your NTRP rating
3-6, 4-2, 0-1
L
2025-07-07 · WESB:Westboro:Rynearson/Nichols · #2 Doubles · 7.0 · with Chris Cawley
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, 2-6
W
2025-06-23 · WESB:Westboro:Rynearson/Nichols · #2 Doubles · 7.0 · with Chris Cawley
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.
6-3, 6-1
W
2025-05-19 · WESB:Westboro:Rynearson/Nichols · #3 Doubles · 7.0 · with Joyce Zhou
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.
6-4, 6-3
L
2025-03-14 · WESB:Westboro:Khuu/Waung · #3 Doubles · 7.0 · with Michael Creamer mixed
doesn’t count toward your NTRP rating
3-6, 5-6
L
2025-03-07 · WESB:Westboro:Khuu/Waung · #1 Doubles · 8.0 · with Phong Khuu mixed
doesn’t count toward your NTRP rating
3-6, 6-3, 0-1
L
2025-02-14 · WESB:Westboro:Khuu/Waung · #2 Doubles · 7.0 · with Leonard ONeil mixed
doesn’t count toward your NTRP rating
5-7, 4-6
W
2025-01-24 · WESB:Westboro:Khuu/Waung · #1 Doubles · 8.0 · with Phong Khuu mixed
doesn’t count toward your NTRP rating
2-6, 6-4, 1-0
W
2025-01-19 · WESB:Westboro:Khuu/Costello · #2 Doubles · 7.0 · with Leonard ONeil mixed
doesn’t count toward your NTRP rating
1-6, 6-1, 1-0
Where you rank locallyagainst everyone at your level
Teams35 teams · 2019–2027
Over timerating by season, and how you rank
By level5 levels played
3.5
0W–2L
not enough matches yet
4.0
0W–3L
not enough matches yet
7.0
50%
8W–8L · 50.4% of games
7.0mixed
50%
21W–21L · 49.1% of games
8.0mixed
80.6%
29W–7L · 58.1% of games

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

By lineusually #3 Doubles, 56% of the time
#3 Doubles
56%
55 matches
#2 Doubles
31%
31 matches
#1 Doubles
11%
11 matches
#1 Singles
2%
2 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.

You can get through anything if you keep going one point at a time.
Arthur Ashe