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Ran Duan

Sammamish, WA
3.5C year-end 2025
56 matches · 20W–36L · seasons 2019–2026
Bump probability
3.03.54.0lowhigh

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.

3.42
estimated dynamic rating
Where the rating sits now, on 9 matches this season · USTA never publishes this number
0%
down to 3.0
84%
stay 3.5
16%
up to 4.0
Projected to December: 0% down · 96% stay · 4% up, from a year-end estimate of 3.36. Lower than today’s 3.42 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 3.5 runs from 3.01 to 3.50. This rating sits in the top 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
Sammamish · 3.5
14 of 40
WA · 3.5
239 of 1209

Ran 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

Ran has played at 4.0, 3.5 across 8 seasons — 0 moves up and 1 down.

3.03.54.020192020202120222023202420252026

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, 2021, 2023 — 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 4.0, Ran has gone from the 60th to the 13th percentile of players at that level, 2019 to 2022.

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 level5 levels played
3.5
1W–1L
not enough matches yet
4.0
35.7%
10W–18L · 48.2% of games
8.0
40%
4W–6L · 46.1% of games
7.0mixed
3W–0L
not enough matches yet
8.0mixed
15.4%
2W–11L · 37.9% of games

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

Match history56 matches
W
2026-07-26 · #1 Doubles · 7.0 · with Sherman Tang
+0.000about as expected — took 55% of games against 59% expected
6-3, 5-7, 1-0
W
Nancy Porter / Dennis Isaacsonmixed
2026-06-28 · #2 Doubles · 7.0 · with Bryan Heathman
+0.000better than expected — took 62% of games against 54% expected
6-3, 7-5
W
2026-06-21 · #1 Doubles · 7.0 · with Sherman Tang
+0.000below expectation — took 40% of games against 56% expected
0-6, 7-6, 1-0
L
Erin Logsdon / Savitha Krammer
2026-02-02 · #2 Doubles · 3.5 · with Sandy Rudolph
−0.035below expectation — took 38% of games against 55% expected
6-2, 7-6
W
2026-01-23 · #2 Doubles · 3.5 · with Renee Fletcher
+0.019better than expected — took 59% of games against 50% expected
6-4, 7-5
L
2025-10-18 · #1 Doubles · 8.0 · with Melanie Redding
−0.057below expectation — took 14% of games against 46% expected
6-1, 6-1
L
Angela Peixotto-Monk / Ann Imus
2025-09-28 · #3 Doubles · 8.0 · with Lynn Hillger
−0.053below expectation — took 35% of games against 59% expected
7-5, 6-2
W
2025-09-14 · #2 Doubles · 8.0 · with Lynn Hillger
−0.006about as expected — took 67% of games against 64% expected
6-4, 6-2
L
2025-09-06 · #3 Doubles · 8.0 · with Anne Welch Coulter
−0.013below expectation — took 38% of games against 45% expected
6-2, 7-6
L
2025-07-12 · #2 Doubles · 8.0 · with John Digenan
+0.000better than expected — took 43% of games against 28% expected
6-4, 7-6
L
2025-06-21 · #3 Doubles · 8.0 · with Joe Stanley
+0.000about as expected — took 40% of games against 45% expected
6-4, 6-4
L
2025-05-24 · #2 Doubles · 4.0 · with Mary Digenan
−0.002below expectation — took 25% of games against 33% expected
6-1, 6-3
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.