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Heidi OBrien

Manhattan Beach, CA
4.5C year-end 2025
145 matches · 60W–85L · seasons 2019–2026
Bump probability
4.04.55.0lowhigh
Where this rating stands today. Taller means more likely.
i
The dashed lines are the edges of your band. The three shaded areas are exactly the three percentages below — area here is the chance of one outcome for you, not a count of players.
4.22
estimated dynamic rating
Where the rating sits now, on 22 matches this season · USTA never publishes this number
0%
down to 4.0
100%
stay 4.5
0%
up to 5.0

A 4.5 runs from 4.01 to 4.50. This rating sits in the middle of the band, and every match moves it.

Our estimate, not a USTA figure.
i
scale measured at this point of 2023 on 2160 players. It moves when you play, and occasionally when we improve the model. USTA publishes year-end ratings in December, which is when this gets graded against what actually happened.
Where you rank
CA · 4.5
53 of 176
By our estimated rating, not the published level.
i
Heidi is ranked against players at the same level in the same place. The published level is identical for everyone in a band, so it cannot separate them — our estimate can. Groups smaller than five are not ranked at all, because a placing out of two is noise dressed as standing.
Over timerating by season, and how you rank
Rating by season

Heidi has been 4.5 for all 7 seasons on record, but moved a long way inside it — from the bottom of the band to the top.

4.04.52019202120222023202420252026

The line is our estimate; the horizontal lines are level boundaries, so crossing one is a bump. Hollow points are years we inferred from the level played the following season, because USTA publishes a current rating but no history.

How you rank at your level
At 4.5, Heidi has gone from the 31st to the 42nd percentile of players at that level, 2019 to 2026.

Percentile compares the same level in the same season, by share of games won. Mixed is shown for context — USTA rules exclude it from your adult rating unless mixed is all you play.

By level6 levels played
0.0
0W–2L
not enough matches yet
4.5
44.8%
47W–58L · 49.8% of games
5.0
1W–1L
not enough matches yet
9.0
55.6%
5W–4L · 49.4% of games
8.0mixed
25%
2W–6L · 47.7% of games
9.0mixed
50%
5W–5L · 50.5% of games

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

Match history145 matches
W
Teresa Campbell / Diana Angell
2026-08-02 · #3 Doubles · 9.0 · with Roselle Paskus
expectation pending — we're still fetching an opponent's record
7-5, 3-6, 1-0
L
Chloe Kishel / Michele Quan
2026-07-29 · #1 Doubles · 4.5 · with Julie Austin
expectation pending — we're still fetching an opponent's record
7-5, 2-6, 1-0
W
Krystal Meier / Jennie Speciale
2026-07-26 · #2 Doubles · 9.0 · with Roselle Paskus
expectation pending — we're still fetching an opponent's record
6-2, 6-7, 1-0
W
Ryan Hickman / Elaine Chan
2026-07-22 · #1 Doubles · 4.5 · with Lindsay Colker
expectation pending — we're still fetching an opponent's record
6-4, 6-3
L
2026-07-19 · #3 Doubles · 9.0 · with Victoria Wright
+0.085better than expected — took 25% of games against 4% expected
6-1, 6-3
W
David Brantley / Junko Kurodamixed
2026-07-12 · #2 Doubles · 9.0 · with Andrew Chekian
mixed — doesn't count toward your NTRP rating
6-3, 6-3
W
MINA RICABAR / Elaine Chan
2026-07-08 · #1 Doubles · 4.5 · with Samantha Kadera
expectation pending — we're still fetching an opponent's record
6-4, 6-0
L
2026-06-28 · #2 Doubles · 4.5 · with Samantha Kadera
−0.012below expectation — took 37% of games against 44% expected
6-3, 6-4
L
Bryson Lee / Mari Shigekawa
2026-06-26 · #1 Doubles · 0.0 · with Joe Derhake
expectation pending — we're still fetching an opponent's record
6-3, 6-0
L
Michelle Dean / Roselle Paskus
2026-06-14 · #2 Doubles · 4.5 · with Tracy French
expectation pending — we're still fetching an opponent's record
7-6, 6-4
W
Janice Chang / Alexandria Bauer
2026-06-07 · #1 Doubles · 4.5 · with Tracy French
expectation pending — we're still fetching an opponent's record
3-6, 6-3, 1-0
L
2026-05-31 · #2 Doubles · 4.5 · with Kristin Southey
expectation pending — we're still fetching an opponent's record
6-4, 1-6, 1-0
What an account addsprivate to you

Signing in lets you point an account at your own record and keep things alongside it: notes on individual matches, your racquet and string setup, restring reminders, friendly matches that never reach TennisLink, and a diary of what you changed and what happened after.

None of it is visible to anyone else. Not to other players, not on your public page, not in search. Every private table is scoped to your account at the database level, so it is enforced rather than promised. The public page you are looking at is built from USTA match results and nothing else.

Not affiliated with or endorsed by the USTA. Rating shown is the published USTA year-end figure; match data is from USTA TennisLink.