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Joanne Jacoby

Mercer Island, WA
4.0C year-end 2025
66 matches · 24W–42L · 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.

3.58
estimated dynamic rating
Where the rating sits now, on 8 matches this season · USTA never publishes this number
17%
down to 3.5
83%
stay 4.0
0%
up to 4.5
Projected to December: 10% down · 90% stay · 0% up, from a year-end estimate of 3.60. Higher than today’s 3.58 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
Mercer Island · 4.0
36 of 45
WA · 4.0
601 of 782

Joanne 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

Joanne has been a steady 4.0 across all 8 seasons on record.

3.54.020192020202120222023202420252026

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 — 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, Joanne has gone from the 24th to the 49th percentile of players at that level, 2022 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 level3 levels played
4.0
35.7%
15W–27L · 44.5% of games
8.0
36.8%
7W–12L · 47.4% of games
7.0mixed
1W–1L
not enough matches yet

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

Match history66 matches
W
2026-06-10 · #3 Doubles · 8.0 · with Sally Devine Wright
+0.056better than expected — took 80% of games against 50% expected
6-3, 6-0
L
2026-06-08 · #3 Doubles · 8.0 · with Sally Devine Wright
0.035below expectation — took 37% of games against 54% expected
5-7, 6-0, 1-0
L
2026-05-29 · #3 Doubles · 8.0 · with Sharon Jaeger
0.002about as expected — took 50% of games against 50% expected
1-6, 6-2, 1-0
W
2026-05-21 · #3 Doubles · 8.0 · with Sally Devine Wright
+0.021better than expected — took 71% of games against 58% expected
6-2, 6-3
W
2026-02-27 · #3 Doubles · 4.0 · with Stephanie Kornblum
+0.049better than expected — took 63% of games against 41% expected
6-3, 6-4
L
2026-02-14 · #2 Doubles · 4.0 · with Nina Menon
+0.002about as expected — took 32% of games against 36% expected
7-5, 6-1
L
2026-02-08 · #2 Doubles · 4.0 · with Nina Menon
0.015below expectation — took 14% of games against 31% expected
6-2, 6-0
L
Jennie Hong / Ming-Lee Yuan
2026-01-23 · #3 Doubles · 4.0 · with Jill Hawkins
0.007below expectation — took 28% of games against 37% expected
6-0, 7-5
W
2025-09-12 · #3 Doubles · with Denise Kaestle
0.005about as expected — took 63% of games against 62% expected
6-4, 6-3
L
2025-09-11 · #3 Doubles · with Kathy Govier
+0.021better than expected — took 44% of games against 37% expected
7-6, 7-5
L
2025-05-20 · #3 Doubles · 8.0 · with Denise Kaestle
+0.003about as expected — took 33% of games against 37% expected
6-2, 6-4
L
2025-05-18 · #3 Doubles · 4.0 · with Sally Brick
0.020below expectation — took 41% of games against 51% expected
7-5, 6-4
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.