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Cathy O'Brien

Chandler, AZ
4.0C year-end 2025
i
Computer — generated by the USTA algorithm from match play
229 matches · 144W–85L · seasons 2019–2027

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Match history229 matches
L
2026-09-08 · 4.0 MTC1 Keller W18F · #3 Doubles · 4.0 · with Carla Sulka
expectation pending — we’re still fetching an opponent’s record
4-6, 4-6
W
2026-07-29 · 7.5 CTC Camacho WedPM · #2 Doubles · 7.5 · with Robin S. Bertolini
expectation pending — we’re still fetching an opponent’s record
7-5, 6-4
W
2026-07-08 · 7.5 CTC Camacho WedPM · #2 Doubles · 7.5 · with Sarah Irizarry
expectation pending — we’re still fetching an opponent’s record
6-2, 6-3
W
2026-06-17 · 7.5 CTC Camacho WedPM · #2 Doubles · 7.5 · with Robin S. Bertolini
expectation pending — we’re still fetching an opponent’s record
6-4, 2-6, 1-0
L
2026-06-03 · 7.5 CTC Camacho WedPM · #2 Doubles · 7.5 · with Robin S. Bertolini
expectation pending — we’re still fetching an opponent’s record
6-1, 3-6, 0-1
W
2026-04-15 · 4.0 CTC Camacho W40S · #1 Doubles · 4.0 · with Carla Sulka
expectation pending — we’re still fetching an opponent’s record
3-6, 6-4, 1-0
L
2026-04-08 · 4.0 CTC Camacho W40S · #2 Doubles · 4.0 · with Rhonda Bies
expectation pending — we’re still fetching an opponent’s record
4-6, 2-6
W
2026-03-10 · 4.0 MTC Keller W18S · #2 Doubles · 4.0 · with Kristin Connolly
expectation pending — we’re still fetching an opponent’s record
6-2, 6-3
L
2026-02-25 · 4.0 CTC Camacho W40S · #2 Doubles · 4.0 · with Aditi Jhalani
expectation pending — we’re still fetching an opponent’s record
6-2, 1-6, 0-1
L
Diane Harmening / Holly Daetwyler
2026-02-24 · 4.0 MTC Keller W18S · #1 Doubles · 4.0 · with Carla Sulka
expectation pending — we’re still fetching an opponent’s record
2-6, 4-6
L
2026-02-18 · 4.0 CTC Camacho W40S · #1 Doubles · 4.0 · with Dori Lynch
expectation pending — we’re still fetching an opponent’s record
5-7, 2-6
W
2026-02-04 · 4.0 CTC Camacho W40S · #2 Doubles · 4.0 · with Dori Lynch
expectation pending — we’re still fetching an opponent’s record
6-3, 3-6, 1-0
Where you rank locallyagainst everyone at your level
Teams45 teams · 2021–2027
Over timerating by season, and how you rank
By level7 levels played
4.0
64.5%
98W–54L · 55.1% of games
4.5
0W–2L
not enough matches yet
7.0
64.3%
9W–5L · 53.1% of games
7.5
75%
18W–6L · 58.4% of games
8.0
38.1%
8W–13L · 47.9% of games
8.5
71.4%
10W–4L · 56.4% of games
8.0mixed
1W–1L
not enough matches yet

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

By lineusually #1 Doubles, 39% of the time
#1 Doubles
39%
90 matches
#2 Doubles
32%
74 matches
#3 Doubles
25%
56 matches
#2 Singles
2%
5 matches
#1 Singles
2%
4 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.

I really think a champion is defined not by their wins but by how they can recover when they fall.
Serena Williams