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Carianne Nieuwstraten

Portland, OR
4.5C year-end 2025
55 matches · 27W–28L · seasons 20192026
Bump probability
4.04.55.0lowhigh

Where this rating stands today. Taller means more likely. The dashed lines are the band edges, and the three shaded areas are the three percentages below.

4.12
estimated dynamic rating
Where the rating sits now, on 5 matches this season · USTA never publishes this number
7%
down to 4.0
93%
stay 4.5
0%
up to 5.0

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

Our estimate, not a USTA figure — scale measured at this point of 2023 on 2160 players. Graded publicly in December when USTA publishes year-end ratings. It moves when you play, and occasionally when we improve the model.

Where you rank
Portland · 4.5
49 of 119
OR · 4.5
98 of 226

Carianne is ranked among players at the same level in the same place, by our estimated dynamic rating — not the published level, which is the same for everyone in the band. Groups smaller than five are not ranked, because a placing out of two is noise dressed as standing.

Over timerating by season, and how you rank
Rating by season

Carianne has played at 5.0, 4.5 across 6 seasons — 0 moves up and 1 down.

4.04.55.0201920202023202420252026

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. The smaller, faded points — 2020 — rest on fewer than 5 matches, where the estimate is mostly the level the player was entered at rather than anything they did on court. Read the shape, not the value.

How you rank at your level
At 4.5, Carianne has gone from the 82nd to the 80th percentile of players at that level, 2023 to 2025.

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
4.5
60%
18W–12L · 55.8% of games
5.0
0%
0W–9L · 25.7% of games
10.0mixed
1W–2L
not enough matches yet
9.0mixed
80%
4W–1L · 50% of games

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

Match history55 matches
W
2026-06-05 · #2 Doubles · 4.5 · with Corinne Celko
+0.014better than expected — took 71% of games against 60% expected
6-2, 6-3
L
2026-05-17 · #2 Doubles · 4.5 · with Rebecca Jacobs
0.039below expectation — took 33% of games against 53% expected
6-2, 4-3
L
2026-04-11 · #1 Doubles · with Lisa Grant
0.039below expectation — took 29% of games against 50% expected
6-1, 6-4
W
2026-02-13 · #2 Doubles · 4.5 · with Lisa Grant
0.023below expectation — took 47% of games against 59% expected
2-6, 6-4, 1-0
W
2026-01-17 · #1 Doubles · 4.5 · with Michelle Donato
0.009about as expected — took 62% of games against 63% expected
6-3, 7-5
W
2025-04-19 · #3 Doubles · 4.5 · with Lisa Grant
+0.034better than expected — took 92% of games against 66% expected
6-0, 6-1
L
2025-04-12 · #1 Doubles · 4.5 · with Lisa Grant
0.003about as expected — took 48% of games against 48% expected
4-6, 6-4, 1-0
W
2025-03-22 · #1 Doubles · with Lisa Grant
+0.012about as expected — took 50% of games against 46% expected
3-6, 7-5, 1-0
L
2025-03-08 · #1 Doubles · 4.5 · with Lisa Grant
0.005about as expected — took 48% of games against 50% expected
7-5, 4-6, 1-0
L
2025-02-23 · #1 Doubles · 4.5 · with Lynn McKelvey
0.069below expectation — took 29% of games against 61% expected
6-4, 6-1
W
2025-02-16 · #2 Doubles · 4.5 · with Joanne Wu
+0.008better than expected — took 92% of games against 75% expected
6-1, 6-0
L
2025-02-09 · #2 Doubles · 4.5 · with Krissy Wyngarden
0.026below expectation — took 47% of games against 57% expected
1-6, 6-1, 1-0
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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.