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Jean Zuber Marshburn

Portland, OR
3.5C year-end 2025
148 matches · 83W–65L · seasons 20192026
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.

3.17
estimated dynamic rating
Where the rating sits now, on 15 matches this season · USTA never publishes this number
2%
down to 3.0
98%
stay 3.5
0%
up to 4.0

A 3.5 runs from 3.01 to 3.50. 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 · 3.5
288 of 399
OR · 3.5
546 of 735

Jean 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.

Teams38 teams · 2016–2027
Over timerating by season, and how you rank
Rating by season

Jean has played at 3.0, 3.5 across 8 seasons — 1 move up and 0 down.

2.53.03.520192020202120222023202420252026

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 — 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 3.5, Jean has gone from the 15th to the 56th percentile of players at that level, 2023 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
3.0
71.4%
45W–18L · 59.2% of games
3.5
47.5%
19W–21L · 47.7% of games
6.0
1W–1L
not enough matches yet
7.0
47.1%
8W–9L · 50.7% of games
7.0mixed
2W–1L
not enough matches yet

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

Match history148 matches
L
2026-06-14 · PTC-Sefchick/Traylen · #2 Doubles · 3.5 · with Teufelin Traylen
+0.003about as expected — took 45% of games against 44% expected
4-6, 6-3, 1-0
W
2026-06-06 · PTC-Sefchick/Traylen · #2 Doubles · 3.5 · with Suzanne Boss
0.017about as expected — took 58% of games against 63% expected
6-2, 4-6, 1-0
W
2026-05-29 · PTC-Sefchick/Traylen · #3 Doubles · 3.5 · with Jennifer Oh
+0.072better than expected — took 68% of games against 37% expected
7-5, 6-1
L
2026-03-28 · PTC-Sefchick/Traylen · #2 Doubles · 3.5 · with Shawn Sefchick
0.017below expectation — took 35% of games against 45% expected
7-5, 6-2
L
Elena Shackelford / Starlyn Corley
2026-03-07 · PTC-Traylen · #3 Doubles · 3.5 · with Yone Akagi
+0.044better than expected — took 50% of games against 33% expected
7-6, 4-6, 1-0
W
2026-02-13 · PTC-Traylen · #3 Doubles · 3.5 · with Yone Akagi
+0.001about as expected — took 50% of games against 51% expected
6-2, 1-6, 1-0
W
2026-02-08 · PTC-Traylen · #3 Doubles · 3.5 · with Teufelin Traylen
0.003about as expected — took 50% of games against 52% expected
3-6, 6-4, 1-0
W
Monica Ao / Gretchen Wagner
2026-01-17 · PTC-Traylen · #3 Doubles · 3.5 · with Yone Akagi
+0.077better than expected — took 67% of games against 35% expected
6-4, 6-2
W
Rita DeWeese / Margaret Rowland
2025-11-21 · PTC-Wellman · #2 Doubles · 7.0 · with Shawn Sefchick
+0.054better than expected — took 92% of games against 60% expected
6-0, 6-1
L
2025-11-08 · PTC-Wellman · #3 Doubles · 7.0 · with Jeanette Thomas
+0.003about as expected — took 48% of games against 46% expected
4-6, 7-5, 1-0
W
Mera Cosgrove / Douglas Hillmixed
2025-11-07 · PTC-Ouellette/Burns · #2 Doubles · 7.0 · with Austin Rice-Stitt
+0.000better than expected — took 80% of games against 49% expected
6-1, 6-2
L
2025-11-02 · PTC-Wellman · #3 Doubles · 7.0 · with Julie Bradford
0.024below expectation — took 37% of games against 49% expected
6-3, 6-4
What an account addsprivate to you

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Not affiliated with or endorsed by the USTA. Rating shown is the published USTA year-end figure; match data is from USTA TennisLink.