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Aaron Haffner

Seattle, WA
4.0C year-end 2025
219 matches · 122W–97L · seasons 2019–2026
Bump probability
3.54.04.5lowhigh

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.

3.59
estimated dynamic rating
Where the rating sits now, on 19 matches this season · USTA never publishes this number
13%
down to 3.5
87%
stay 4.0
0%
up to 4.5
Projected to December: 9% down · 91% stay · 0% up, from a year-end estimate of 3.61. Higher than today’s 3.59 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 bottom 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
Seattle · 4.0
132 of 186
WA · 4.0
576 of 782

Aaron 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

Aaron has played at 3.5, 4.0 across 8 seasons — 1 move up and 0 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.

How you rank at your level
At 4.0, Aaron has gone from the 60th to the 83rd percentile of players at that level, 2021 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 level5 levels played
3.5
66.7%
34W–17L · 55.5% of games
4.0
59.5%
25W–17L · 54.1% of games
4.5
21.1%
4W–15L · 41.3% of games
7.0mixed
55.8%
29W–23L · 51% of games
8.0mixed
56.7%
17W–13L · 50.8% of games

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

Match history219 matches
W
Laura Walsh / Jim Hollandmixed
2026-07-26 · #2 Doubles · 8.0 · with Sara Simonson
+0.000about as expected — took 65% of games against 63% expected
7-6, 6-1
L
Bally Bang / J Coifmanmixed
2026-07-18 · #1 Doubles · 8.0 · with Andrea Noon
+0.000better than expected — took 48% of games against 38% expected
7-5, 4-6, 1-0
L
2026-06-20 · #3 Doubles · 8.0 · with Sara Simonson
+0.000below expectation — took 37% of games against 50% expected
6-4, 6-3
W
Nathan Hambley / Thomas Isarankura
2026-06-05 · #3 Doubles · 4.0 · with Tony Du
+0.020better than expected — took 63% of games against 53% expected
6-3, 6-4
W
Chris Chau / Jack Crose
2026-05-23 · #3 Doubles · 4.0 · with Kevin Vu
+0.007about as expected — took 55% of games against 52% expected
4-6, 6-3, 1-0
W
Jason Shinn / Brett Shell
2026-04-04 · #2 Doubles · 4.0 · with Len Henzke
+0.033better than expected — took 86% of games against 63% expected
6-1, 6-1
W
2026-03-28 · #2 Doubles · 4.0 · with Brian Porter
+0.022better than expected — took 75% of games against 60% expected
6-1, 6-3
L
2026-02-21 · #3 Doubles · 4.5 · with Anh Nguyen
+0.007about as expected — took 29% of games against 33% expected
6-2, 6-3
W
N/A
2026-02-13 · #3 Doubles · 4.5 · with Selcuk Basturk
−0.063about as expected — took 100% of games against 96% expected
6-0, 6-0
L
Paul Brown / Henry Doan
2026-02-07 · #3 Doubles · 4.5 · with Selcuk Basturk
+0.047better than expected — took 35% of games against 24% expected
6-2, 7-5
L
2026-02-01 · #3 Doubles · 4.0 · with Chuong Do
−0.039below expectation — took 33% of games against 53% expected
6-2, 6-4
L
2026-01-25 · #3 Doubles · 4.5 · with Anh Nguyen
−0.002about as expected — took 41% of games against 43% expected
6-2, 6-7, 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.