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Amy CookSjoerdsma

Las Vegas, NV
4.0C year-end 2025
143 matches · 55W–88L · 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.

3.39
estimated dynamic rating
Where the rating sits now, on 4 matches this season · USTA never publishes this number
92%
down to 3.5
8%
stay 4.0
0%
up to 4.5
Projected to December: 71% down · 29% stay · 0% up, from a year-end estimate of 3.46. Higher than today’s 3.39 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
Las Vegas · 4.0
127 of 129
NV · 4.0
196 of 203

Amy 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

Amy 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 — 2026 — 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, Amy has gone from the 11th to the 29th percentile of players at that level, 2019 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 level2 levels played
4.0
37.8%
48W–79L · 45.9% of games
8.0
40%
6W–9L · 50% of games

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

Match history143 matches
L
2026-05-30 · #3 Doubles · 4.0 · with Sharon Pauli
0.009below expectation — took 20% of games against 33% expected
6-1, 6-2
W
2026-05-16 · #3 Doubles · 4.0 · with Sharon Pauli
0.007better than expected — took 75% of games against 69% expected
6-3, 6-1
L
Megan Bell / Ashley Marx
2026-05-02 · #2 Doubles · 4.0 · with Sharon Pauli
0.057below expectation — took 20% of games against 50% expected
6-2, 6-1
W
Billi Dunning / Cynthia Graham
2026-04-11 · #3 Doubles · 4.0 · with Sharon Pauli
+0.022better than expected — took 57% of games against 47% expected
6-3, 6-7, 1-0
L
Tina Back / Amy Katz
2025-12-15 · #1 Doubles · 4.0 · with Debora Dean
0.042below expectation — took 0% of games against 32% expected
6-0, 6-0
W
2025-12-08 · #4 Doubles · 4.0 · with Debora Dean
0.017below expectation — took 58% of games against 63% expected
6-2, 4-6, 1-0
L
Tanya Hale / Rebecca Little
2025-11-17 · #4 Doubles · 4.0 · with Donna Lefever
+0.006about as expected — took 32% of games against 35% expected
7-5, 6-1
L
Cynthia Graham / Tara Bananto
2025-10-27 · #4 Doubles · 4.0 · with Lorri McElroy
+0.012better than expected — took 50% of games against 44% expected
3-6, 6-4, 1-0
L
Alison Mark / Annie Guiliano
2025-10-13 · #4 Doubles · 4.0 · with Karen Watts
0.005about as expected — took 41% of games against 44% expected
3-6, 6-1, 1-0
W
Diane Welch / Amy Nhaisi
2025-09-15 · #3 Doubles · 4.0 · with Jennifer Togliatti
0.008below expectation — took 48% of games against 53% expected
7-5, 2-6, 1-0
W
Nora Taylor / Christine McNaught
2025-04-28 · #4 Doubles · 4.0 · with Debora Dean
+0.026better than expected — took 62% of games against 49% expected
6-2, 7-6
L
2025-04-07 · #4 Doubles · 4.0 · with Debbie Torbati
+0.002about as expected — took 45% of games against 44% expected
6-3, 4-6, 1-0
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.