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Jackie Niddrie

San Diego, CA
3.5C year-end 2025
92 matches · 45W–47L · seasons 2019–2026
Bump probability
3.03.54.0lowhigh
Where this rating stands today. Taller means more likely.
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The dashed lines are the edges of your band. The three shaded areas are exactly the three percentages below — area here is the chance of one outcome for you, not a count of players.
3.44
estimated dynamic rating
Where the rating sits now, on 18 matches this season · USTA never publishes this number
0%
down to 3.0
78%
stay 3.5
22%
up to 4.0
Projected to December: 0% down · 95% stay · 5% up, from a year-end estimate of 3.37. Lower than today’s 3.44 because form regresses — players this far into their band partway through a season have historically finished nearer the middle of it. Keep playing at this level and the numbers above are the ones that hold.

A 3.5 runs from 3.01 to 3.50. This rating sits in the top of the band, and every match moves it.

Our estimate, not a USTA figure.
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scale measured at this point of 2023 on 2160 players. It moves when you play, and occasionally when we improve the model. USTA publishes year-end ratings in December, which is when this gets graded against what actually happened.
Where you rank
San Diego · 3.5
40 of 77
CA · 3.5
80 of 167
By our estimated rating, not the published level.
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Jackie is ranked against players at the same level in the same place. The published level is identical for everyone in a band, so it cannot separate them — our estimate can. Groups smaller than five are not ranked at all, because a placing out of two is noise dressed as standing.
Over timerating by season, and how you rank
Rating by season

Jackie has played at 4.0, 3.5 across 5 seasons — 0 moves up and 1 down.

3.03.54.020192021202220252026

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, Jackie has gone from the 60th to the 13th percentile of players at that level, 2019 to 2022.

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
75%
6W–2L · 53.6% of games
4.0
46.2%
18W–21L · 46.9% of games
7.0
57.9%
11W–8L · 52.1% of games
8.0
50%
6W–6L · 49.3% of games
8.0mixed
28.6%
4W–10L · 44.9% of games

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

Match history92 matches
W
Marla Helms / Jean Davis
2026-07-31 · #1 Doubles · 7.0 · with Lindy Mamer
expectation pending — we're still fetching an opponent's record
6-3, 6-4
W
2026-07-31 · #1 Doubles · 7.0 · with Lindy Mamer
−0.018about as expected — took 71% of games against 70% expected
6-3, 6-2
L
Margaret Hulme / Lisa Harrison
2026-07-27 · #2 Doubles · 8.0 · with Lindy Mamer
expectation pending — we're still fetching an opponent's record
6-1, 6-3
L
Patricia Brennan / Dana Davalos
2026-07-23 · #1 Doubles · 7.0 · with Lindy Mamer
expectation pending — we're still fetching an opponent's record
6-3, 6-1
L
Kelly Murphy / Stephanie Persson
2026-07-17 · #1 Doubles · 7.0 · with Lindy Mamer
expectation pending — we're still fetching an opponent's record
7-6, 6-4
W
Colleen Hartman / Peggy Peloquin
2026-07-16 · #1 Doubles · 7.0 · with Lindy Mamer
expectation pending — we're still fetching an opponent's record
6-3, 4-6, 1-0
W
Lesley Stillwater / Jeanne Berges
2026-07-03 · #1 Doubles · 7.0 · with Lisa Shirley
expectation pending — we're still fetching an opponent's record
6-0, 7-5
L
Maria Simon / Jill Lehr
2026-07-02 · #2 Doubles · 7.0 · with Nancy Peinado
expectation pending — we're still fetching an opponent's record
6-2, 6-3
L
Michelle Linhoff / Victoria Wood
2026-06-29 · #3 Doubles · 8.0 · with Lisa Shirley
expectation pending — we're still fetching an opponent's record
6-1, 6-3
L
Diane Thornton / Karen Swartz
2026-06-26 · #1 Doubles · 7.0 · with Lisa Shirley
expectation pending — we're still fetching an opponent's record
6-4, 6-2
L
Ana Hernandez / Ruby Gardner
2026-06-25 · #1 Doubles · 7.0 · with Donna Dube
expectation pending — we're still fetching an opponent's record
6-3, 6-0
W
Beverly Wolgast / Susan Thorsell
2026-06-19 · #1 Doubles · 7.0 · with Lindy Mamer
expectation pending — we're still fetching an opponent's record
6-3, 6-4
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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.