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Maria Sierra

Miami, FL
3.0C year-end 2025
211 matches · 92W–119L · seasons 2019–2026
Bump probability
2.53.03.5lowhigh
Where this rating stands today. Taller means more likely.
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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.
3.00
estimated dynamic rating
Where the rating sits now, on 58 matches this season · USTA never publishes this number
0%
down to 2.5
52%
stay 3.0
48%
up to 3.5
Projected to December: 0% down · 86% stay · 14% up, from a year-end estimate of 2.91. Lower than today’s 3.00 because form regresses — players this far into their band partway through a season have historically finished nearer the middle of it. Keep playing at this level and the numbers above are the ones that hold.

A 3.0 runs from 2.51 to 3.00. This rating sits in the top of the band, and every match moves it.

Our estimate, not a USTA figure.
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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
Miami · 3.0
13 of 39
FL · 3.0
54 of 111
By our estimated rating, not the published level.
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Maria 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

Maria has played at 3.5, 3.0 across 8 seasons — 0 moves up and 1 down.

2.53.03.520192020202120222023202420252026

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 3.5, Maria has gone from the 39th to the 51st 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 level7 levels played
3.0
40.5%
15W–22L · 43.8% of games
3.5
39.8%
33W–50L · 47.7% of games
4.0
50%
5W–5L · 56.1% of games
5.5
87.5%
7W–1L · 59.2% of games
6.0
38.2%
13W–21L · 46.2% of games
6.5
46.7%
7W–8L · 47.7% of games
7.0
52.2%
12W–11L · 49.2% of games

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

Match history211 matches
L
Nelly Pittack / Holly Croxall Barnhart
2026-08-04 · #3 Doubles · 5.5 · with Christine Borrack
expectation pending — we're still fetching an opponent's record
6-2, 6-4
W
Dawn Kirles / Janet Sanchez
2026-08-03 · #2 Doubles · 6.5 · with Marla Ferreira
expectation pending — we're still fetching an opponent's record
7-6, 6-0
W
Jean Voglino / Claudia Castillo
2026-07-30 · #2 Doubles · 5.5 · with Michelle Garoufalis
expectation pending — we're still fetching an opponent's record
6-2, 3-6, 1-0
W
Chie-Mie Chyung / Emeris Lucas
2026-07-28 · #3 Doubles · 5.5 · with Michelle Garoufalis
expectation pending — we're still fetching an opponent's record
5-7, 7-6, 1-0
W
Carolina Cardona / Yolanda Narvaez
2026-07-09 · #1 Doubles · 5.5 · with Anika Dittmar
expectation pending — we're still fetching an opponent's record
6-3, 6-1
W
Samantha Murphy / Natali Robert
2026-06-25 · #1 Doubles · 5.5 · with Anika Dittmar
expectation pending — we're still fetching an opponent's record
6-2, 6-1
W
Ana Carolina Grabowsky Seiler C Guerra / Juliana Ospina
2026-06-23 · #3 Doubles · 5.5 · with Nicole Tu
expectation pending — we're still fetching an opponent's record
6-2, 6-3
W
Isabel CRUZ / Ludivine Bindingnavile
2026-06-16 · #2 Doubles · 5.5 · with Nicole Tu
expectation pending — we're still fetching an opponent's record
5-7, 7-5, 1-0
L
2026-06-15 · #2 Doubles · 6.5 · with Karen Zinn
expectation pending — we're still fetching an opponent's record
6-1, 6-3
W
Nathalie Tordion / Marcela Rocha
2026-06-11 · #3 Doubles · 5.5 · with Martina Cromer
expectation pending — we're still fetching an opponent's record
6-4, 6-1
L
Claudia Nogal / Alba GARCIA
2026-06-08 · #3 Doubles · 6.5 · with Marla Ferreira
expectation pending — we're still fetching an opponent's record
6-2, 7-5
W
Adrianne Mittentag / Claudia van Essen
2026-04-28 · #2 Female Doubles · 3.5 · with Maria Feldman
expectation pending — we're still fetching an opponent's record
7-5, 6-3
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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.