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Donald Brenneman

Portland, OR
4.0C year-end 2025
99 matches · 44W–55L · seasons 20192026
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.

3.63
estimated dynamic rating
Where the rating sits now, on 6 matches this season · USTA never publishes this number
5%
down to 3.5
95%
stay 4.0
0%
up to 4.5

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 — 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 · 4.0
186 of 266
OR · 4.0
338 of 498

Donald 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.

Teams52 teams · 2002–2026
NOR-MAC-Henderson
2026 Adult 65 & Over · 8.0 Men
2026
MAC-Hill
2026 Adult 55 & Over · 8.0 Men
2026
MAC-Turnbull/Hergenhan
2025 Adult 55 & Over · 8.0 Men
2025
N OR-MAC-Henderson
2025 Adult 65 & Over · 8.0 Men
2025
N OR-MAC-Helmer
2024 Adult 65 & Over · 8.0 Men
2024
MAC-Henderson
2024 Adult 55 & Over · 8.0 Men
2024
Over timerating by season, and how you rank
Rating by season

Donald has been a steady 4.0 across all 6 seasons on record.

3.54.0201920202021202220232024

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 8.0, Donald has gone from the 62nd to the 45th 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 level3 levels played
4.0
34.5%
10W–19L · 45% of games
8.0
51%
26W–25L · 50.7% of games
8.0mixed
50%
2W–2L · 45.3% of games

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

Match history99 matches
W
N/A
2026-04-30 · NOR-MAC-Henderson · #3 Doubles · 8.0 · with James Hockley
0.070about as expected — took 100% of games against 96% expected
6-0, 6-0
L
2025-12-06 · MAC-Hill · #2 Doubles · 8.0 · with Ben Jacobson
0.036below expectation — took 38% of games against 55% expected
6-3, 7-5
W
2025-11-22 · MAC-Hill · #3 Doubles · 8.0 · with Jonathan Barg
0.021below expectation — took 60% of games against 65% expected
6-4, 6-4
L
John Biagioli / Shung Shin
2025-11-01 · MAC-Hill · #3 Doubles · 8.0 · with William Campbell
0.001about as expected — took 43% of games against 44% expected
7-6, 6-4
L
2025-10-26 · MAC-Hill · #2 Doubles · 8.0 · with Jonathan Barg
+0.008about as expected — took 44% of games against 41% expected
7-5, 7-6
L
2025-10-12 · MAC-Hill · #2 Doubles · 8.0 · with Jonathan Barg
0.001about as expected — took 50% of games against 49% expected
4-6, 7-6, 1-0
W
2025-09-13 · MAC-Turnbull/Hergenhan · #3 Doubles · with Jeffrey Krum
not counted — an opponent has no rating on record
6-3, 4-6, 1-0
W
Jeff Brantner / Wally Morrisonchamps
2025-09-11 · MAC-Turnbull/Hergenhan · #3 Doubles · with Jeffrey Krum
not counted — an opponent has no rating on record
7-6, 1-6, 1-0
L
2025-05-15 · N OR-MAC-Henderson · #2 Doubles · 8.0 · with Bill Henderson
not counted — an opponent has no rating on record
3-6, 7-6, 1-0
L
2025-04-18 · N OR-MAC-Henderson · #2 Doubles · 8.0 · with Jeffrey Krum
not counted — an opponent has no rating on record
6-1, 7-5
W
2025-04-10 · N OR-MAC-Henderson · #2 Doubles · 8.0 · with Jeffrey Krum
not counted — an opponent has no rating on record
7-6, 6-2
W
Alan Kaplan / Arthur Edwards
2025-03-20 · N OR-MAC-Henderson · #3 Doubles · 8.0 · with Jeffrey Krum
not counted — an opponent has no rating on record
6-3, 6-2
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.