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Sandy Dielman

LA Jolla, CA
4.0C year-end 2025
262 matches · 161W–101L · seasons 2022–2026
Bump probability
3.54.04.5lowhigh
Where this rating stands today. Taller means more likely.
i
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.
4.04
estimated dynamic rating
Where the rating sits now, on 36 matches this season · USTA never publishes this number
0%
down to 3.5
32%
stay 4.0
68%
up to 4.5
Projected to December: 0% down · 75% stay · 25% up, from a year-end estimate of 3.95. Lower than today’s 4.04 because form regresses — players this far above 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 4.0 runs from 3.51 to 4.00. This rating sits in the top of the band, and every match moves it.

Our estimate, not a USTA figure.
i
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
CA · 4.0
5 of 57
By our estimated rating, not the published level.
i
Sandy 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

Sandy has been 4.0 for all 5 seasons on record, but moved a long way inside it — from the bottom of the band to the top.

3.54.020222023202420252026

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, Sandy has gone from the 67th to the 81st 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 level6 levels played
3.5
75%
27W–9L · 59.2% of games
4.0
62%
103W–63L · 53.3% of games
4.5
33.3%
8W–16L · 41.5% of games
5.0
0W–2L
not enough matches yet
7.0mixed
50%
2W–2L · 60.9% of games
8.0mixed
54.5%
6W–5L · 48.8% of games

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

Match history262 matches
W
2026-07-27 · #1 Doubles · 4.0 · with Noelle Randall
+0.014better than expected — took 67% of games against 58% expected
6-3, 6-3
W
Monika Wimmer / Whitney Nyholm
2026-07-26 · #2 Doubles · 4.5 · with Noelle Randall
expectation pending — we're still fetching an opponent's record
6-3, 6-4
W
2026-07-20 · #1 Doubles · 4.0 · with Jaimee Brant
expectation pending — we're still fetching an opponent's record
6-4, 4-6, 1-0
L
Catherine Rieke / Chloe Erikson
2026-07-19 · #2 Doubles · 4.5 · with Noelle Randall
expectation pending — we're still fetching an opponent's record
6-3, 6-2
W
Kendal Texeira / Kathy Williams
2026-07-17 · #2 Doubles · 4.5 · with Avelina Kauffman
expectation pending — we're still fetching an opponent's record
3-6, 6-4, 1-0
W
Kelly Jernigan / Lisa Paler
2026-07-12 · #2 Doubles · 4.5 · with Noelle Randall
expectation pending — we're still fetching an opponent's record
6-7, 6-0, 1-0
W
Kristin DeWitt / Andrea Van Soest
2026-07-10 · #2 Doubles · 4.5 · with Avelina Kauffman
expectation pending — we're still fetching an opponent's record
6-3, 6-1
L
2026-07-03 · #2 Doubles · 4.5 · with Carrie Musicant
−0.030below expectation — took 20% of games against 39% expected
6-1, 6-2
W
Kathy Hailey / Becky Kuba
2026-06-05 · #1 Doubles · 4.0 · with Soledad Ramirez
expectation pending — we're still fetching an opponent's record
6-1, 6-2
W
Janene Christopher / Kanoko Esheim
2026-05-31 · #2 Doubles · 4.0 · with Helen Beran
expectation pending — we're still fetching an opponent's record
6-0, 6-0
L
Ashley Bull / Jane Khouw
2026-05-29 · #2 Doubles · 4.0 · with Noelle Randall
expectation pending — we're still fetching an opponent's record
7-6, 4-6, 1-0
W
Meg Dawson / Alexandra Chavez Caro
2026-05-27 · #1 Doubles · 4.0 · with Kelly Wilson
expectation pending — we're still fetching an opponent's record
6-3, 2-6, 1-0
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