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Mary Costello

Shelby Township, MI
3.0C year-end 2025
i
Computer — generated by the USTA algorithm from match play
210 matches · 98W–112L · seasons 20152026

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Match history210 matches
W
2026-07-23 · TROY-Costello 55s 7.0 DW F3 · #2 Doubles · 7.0 · with Susan Yee
expectation pending — we’re still fetching an opponent’s record
3-6, 6-1, 1-0
L
2026-07-22 · TROY-Wernette 18s 3.5 NW F4 · #3 Doubles · 3.5 · with Patty Wernette
expectation pending — we’re still fetching an opponent’s record
3-6, 6-7
L
2026-07-20 · TROY-Kozak 40s 3.0 DW F2 · #2 Doubles · 3.0 · with Linda Wojcik
expectation pending — we’re still fetching an opponent’s record
2-6, 6-2, 0-1
L
2026-07-15 · TROY-Kozak 55s 6.0 DW F1 · #1 Doubles · 6.0 · with Laura Colbert
expectation pending — we’re still fetching an opponent’s record
4-6, 5-7
W
2026-07-10 · TROY-Kozak 40s 3.0 DW F2 · #3 Doubles · 3.0 · with Linda Wojcik
expectation pending — we’re still fetching an opponent’s record
7-5, 6-1
L
2026-07-09 · TROY-Costello 55s 7.0 DW F3 · #1 Doubles · 7.0 · with Adriana Chitoiu
expectation pending — we’re still fetching an opponent’s record
1-6, 4-6
W
2026-07-08 · TROY-Kozak 55s 6.0 DW F1 · #1 Doubles · 6.0 · with Laura Colbert
expectation pending — we’re still fetching an opponent’s record
6-4, 7-5
L
Mary Williams / Francine Arbit
2026-07-02 · TROY-Costello 55s 7.0 DW F3 · #3 Doubles · 7.0 · with Susan Goodman
expectation pending — we’re still fetching an opponent’s record
3-6, 5-7
W
Michele Barnard / Tamela Froeschke
2026-06-29 · TROY-Kozak 40s 3.0 DW F2 · #1 Doubles · 3.0 · with Susan Goodman
expectation pending — we’re still fetching an opponent’s record
6-4, 6-7, 1-0
L
Stacie Rein / Nozomi Craft
2026-06-25 · TROY-Costello 55s 7.0 DW F3 · #3 Doubles · 7.0 · with Susan Goodman
expectation pending — we’re still fetching an opponent’s record
3-6, 2-6
W
2026-06-24 · TROY-Kozak 55s 6.0 DW F1 · #1 Doubles · 6.0 · with Susan Goodman
expectation pending — we’re still fetching an opponent’s record
6-3, 4-6, 1-0
L
2026-06-22 · TROY-Kozak 40s 3.0 DW F2 · #1 Doubles · 3.0 · with Carolyn Lacusta
expectation pending — we’re still fetching an opponent’s record
2-6, 6-7
Where you rank locallyagainst everyone at your level
Teams17 teams · 2022–2026
Over timerating by season, and how you rank
By level5 levels played
3.0
72.7%
8W–3L · 59.5% of games
3.5
44.3%
58W–73L · 46.7% of games
6.0
75%
3W–1L · 53.5% of games
6.5
61.9%
13W–8L · 56.5% of games
7.0
36.8%
14W–24L · 45.7% of games

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

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.

It’s one of the reasons why I like tennis so much. Because you have to figure it out on your own.
Roger Federer