Search

Donna Roisom

Wilsonville, OR
4.0C year-end 2025
185 matches · 100W–85L · 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.

3.66
estimated dynamic rating
Where the rating sits now, on 14 matches this season · USTA never publishes this number
2%
down to 3.5
98%
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
Wilsonville · 4.0
7 of 9
OR · 4.0
297 of 498

Donna 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.

Teams118 teams · 2003–2026
Over timerating by season, and how you rank
Rating by season

Donna has played at 4.5, 4.0 across 6 seasons — 0 moves up and 1 down.

3.54.04.5201920202022202320242025

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, Donna has gone from the 67th to the 66th percentile of players at that level, 2022 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 level8 levels played
4.0
42.1%
8W–11L · 48.2% of games
4.5
30%
6W–14L · 42.7% of games
7.0
75%
3W–1L · 51.9% of games
8.0
73.3%
44W–16L · 59% of games
9.0
37.5%
3W–5L · 39.9% of games
7.0mixed
2W–1L
not enough matches yet
8.0mixed
51.4%
18W–17L · 50% of games
9.0mixed
10%
1W–9L · 28.5% of games

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

Match history185 matches
L
2026-04-30 · CAC-Birkhofer · #2 Doubles · 8.0 · with Lee Havens
0.003about as expected — took 50% of games against 50% expected
7-5, 3-6, 1-0
L
2026-04-25 · SHC-Zielinski · #2 Doubles · 8.0 · with Hector M Salomon
+0.000about as expected — took 44% of games against 48% expected
7-6, 7-5
W
2026-04-23 · CAC-Birkhofer · #2 Doubles · 8.0 · with Lee Havens
+0.034better than expected — took 75% of games against 56% expected
6-3, 6-1
W
2026-04-17 · CAC-Birkhofer · #2 Doubles · 8.0 · with Kathleen Goodfriend
0.007about as expected — took 67% of games against 65% expected
6-2, 6-4
W
2026-04-03 · CAC-Birkhofer · #1 Doubles · 8.0 · with Kathleen Goodfriend
+0.003better than expected — took 80% of games against 69% expected
6-2, 6-1
L
Sharon Loomis-Malin / Diane Camp
2026-04-02 · CHARB-Hamilton/Gray · #2 Doubles · 7.0 · with Pauline Reilly
0.022below expectation — took 29% of games against 42% expected
6-4, 6-1
L
2026-03-27 · CAC-Birkhofer · #2 Doubles · 8.0 · with Katherine Kralj
0.011below expectation — took 33% of games against 41% expected
6-4, 6-2
W
2026-03-27 · SHC-Zielinski · #3 Doubles · 8.0 · with Jonathan Caplan
+0.000better than expected — took 68% of games against 55% expected
7-5, 6-1
W
Ferdinand Molina-Vega / Yhanara Barettychamps
2026-03-14 · #2 Doubles · with Gilbert Chiang
+0.043better than expected — took 86% of games against 60% expected
6-2, 6-0
L
Jeff Fontaine / Judy Haegchamps
2026-03-13 · #3 Doubles · with Gilbert Chiang
0.006about as expected — took 58% of games against 57% expected
7-5, 0-6, 1-0
W
2025-11-07 · WHRC-Grilley/Adcock · #1 Doubles · 8.0 · with Carrie Fisher
+0.042better than expected — took 80% of games against 56% expected
6-3, 6-0
L
Laurence Dupray / Debbie Tingey
2025-10-25 · WHRC-Grilley/Adcock · #2 Doubles · 8.0 · with Elizabeth Domagalski
0.057below expectation — took 20% of games against 50% expected
6-0, 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.