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Mariana Sullivan

Westlake Village, CA
4.0C year-end 2025
186 matches · 95W–91L · seasons 2019–2026
Bump probability
3.54.04.5lowhigh
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.
3.61
estimated dynamic rating
Where the rating sits now, on 22 matches this season · USTA never publishes this number
9%
down to 3.5
91%
stay 4.0
0%
up to 4.5
Projected to December: 6% down · 94% stay · 0% up, from a year-end estimate of 3.62. Higher than today’s 3.61 because players this far below their band have historically finished nearer the middle of it.

A 4.0 runs from 3.51 to 4.00. This rating sits in the lower half 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
Westlake Village · 4.0
8 of 8
CA · 4.0
355 of 432
By our estimated rating, not the published level.
i
Mariana 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

Mariana has played at 3.5, 4.0 across 6 seasons — 1 move up and 0 down.

3.03.54.0201920222023202420252026

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 4.0, Mariana has gone from the 64th to the 48th percentile of players at that level, 2022 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 level4 levels played
3.5
50%
26W–26L · 49.6% of games
4.0
51.7%
62W–58L · 50.7% of games
0.0mixed
1W–1L
not enough matches yet
8.0mixed
100%
4W–0L · 62.2% of games

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

Match history186 matches
L
Kathleen Feig / Michelle Jackson
2026-08-01 · #1 Doubles · 4.0 · with Michelle Parent
expectation pending — we're still fetching an opponent's record
6-1, 6-1
W
2026-07-11 · #1 Doubles · 4.0 · with Reanne Charuhas
−0.000about as expected — took 56% of games against 56% expected
7-5, 7-6
W
Michelle Ha / Karen Walker
2026-06-20 · #3 Doubles · 4.0 · with Dorothy Lewis
expectation pending — we're still fetching an opponent's record
6-3, 4-6, 1-0
L
Joanah Greenspan / Yang Ja Ballard
2026-06-14 · #1 Doubles · 4.0 · with Kristine Werner
expectation pending — we're still fetching an opponent's record
6-2, 6-2
L
Lan Chao / Heather McGregor
2026-06-08 · #2 Doubles · 4.0 · with Rachel Barlow
expectation pending — we're still fetching an opponent's record
6-2, 6-1
L
Cheryl Kalinke / Heather McGregor
2026-06-06 · #2 Doubles · 4.0 · with Kimberly Hasenauer
expectation pending — we're still fetching an opponent's record
6-3, 7-5
W
2026-05-30 · #2 Doubles · 4.0 · with Dorothy Chung
+0.037better than expected — took 80% of games against 58% expected
6-3, 6-0
L
Heather Miller / Kirsten Johnston
2026-05-26 · #3 Doubles · 4.0 · with Rachel Barlow
expectation pending — we're still fetching an opponent's record
1-6, 6-4, 1-0
W
2026-05-18 · #3 Doubles · 4.0 · with Rachel Barlow
expectation pending — we're still fetching an opponent's record
6-4, 6-4
L
Tanja Daniel / Lisa Doan
2026-05-13 · #2 Doubles · 4.0 · with Tracee Nilsson
expectation pending — we're still fetching an opponent's record
3-6, 6-3, 1-0
L
2026-05-03 · #1 Doubles · 4.0 · with Teri Terrusa
expectation pending — we're still fetching an opponent's record
7-5, 4-6, 1-0
W
Deborah Kerr-Orlik / Lisa Bourne
2026-04-30 · #3 Doubles · 4.0 · with Stefanie Wah
expectation pending — we're still fetching an opponent's record
6-4, 6-3
What an account addsprivate to you

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