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Karin Gruver

Lakebay, WA
4.0C year-end 2025
34 matches · 19W–15L · 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.

3.64
estimated dynamic rating
Where the rating sits now, on 3 matches this season · USTA never publishes this number
4%
down to 3.5
96%
stay 4.0
0%
up to 4.5

A 4.0 runs from 3.51 to 4.00. 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
WA · 4.0
498 of 840

Karin 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
How you rank at your level

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
1W–1L
not enough matches yet
8.0
66.7%
16W–8L · 57.6% of games

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

Match history34 matches
L
2026-05-22 · #2 Doubles · 8.0 · with Teresa Giske
0.032below expectation — took 33% of games against 50% expected
6-2, 6-4
W
2026-05-08 · #3 Doubles · 8.0 · with Kim Martin
0.049below expectation — took 62% of games against 75% expected
6-2, 7-6
L
2026-04-10 · #2 Doubles · 8.0 · with Teresa Giske
0.025below expectation — took 32% of games against 45% expected
6-1, 7-5
W
2025-09-13 · #2 Doubles · with Teresa Giske
not counted — an opponent has no rating on record
5-7, 7-6, 1-0
L
2025-09-12 · #2 Doubles · with Emma Hoolihan
not counted — an opponent has no rating on record
7-5, 6-1
L
Heather Drakulich / Mickey Brennanchamps
2025-09-11 · #1 Doubles · with Emma Hoolihan
not counted — an opponent has no rating on record
6-1, 6-0
W
2025-06-13 · #2 Doubles · 8.0 · with Teresa Giske
not counted — an opponent has no rating on record
6-2, 6-2
W
2025-06-06 · #2 Doubles · 8.0 · with Emma Hoolihan
not counted — an opponent has no rating on record
6-0, 6-3
L
Pauli Martin / Janet Owenchamps
2024-09-14 · #1 Doubles · with Nancy Arnott
not counted — an opponent has no rating on record
6-3, 6-3
L
2024-09-13 · #2 Doubles · with Nancy Arnott
not counted — an opponent has no rating on record
6-2, 6-3
W
2024-05-24 · #1 Doubles · 8.0 · with Teresa Giske
not counted — an opponent has no rating on record
6-4, 6-2
W
2024-05-17 · #2 Doubles · 8.0 · with Emma Hoolihan
not counted — an opponent has no rating on record
6-4, 6-1
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.