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Katie Lai

Seattle, WA
4.5C year-end 2025
104 matches · 73W–31L · seasons 2022–2026
Bump probability
4.04.55.0lowhigh

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.

4.27
estimated dynamic rating
Where the rating sits now, on 17 matches this season · USTA never publishes this number
0%
down to 4.0
100%
stay 4.5
0%
up to 5.0

A 4.5 runs from 4.01 to 4.50. This rating sits in the middle 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
Seattle · 4.5
17 of 103
WA · 4.5
48 of 364

Katie 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

Katie has been 4.5 for all 5 seasons on record, but moved a long way inside it — from the bottom of the band to the top.

4.04.520222023202420252026

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 4.5, Katie has gone from the 78th to the 30th percentile of players at that level, 2023 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 level5 levels played
4.5
73.7%
28W–10L · 58.5% of games
5.0
56.2%
9W–7L · 52.7% of games
10.0mixed
55.6%
5W–4L · 60.1% of games
8.0mixed
3W–0L
not enough matches yet
9.0mixed
87.5%
14W–2L · 64.1% of games

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

Match history104 matches
W
2026-06-21 · #1 Doubles · with Tamra Godfrey
−0.026about as expected — took 67% of games against 70% expected
6-4, 6-2
W
2026-06-20 · #3 Doubles · with Connie Cai
+0.023better than expected — took 71% of games against 57% expected
6-2, 6-3
W
Barbara Ann Andrews / Megan Bassetti
2026-05-30 · #1 Doubles · 5.0 · with Mia Nguyen
+0.013better than expected — took 59% of games against 52% expected
6-3, 7-6
W
2026-05-29 · #1 Doubles · 4.5 · with Connie Cai
+0.041better than expected — took 68% of games against 48% expected
7-5, 6-1
W
Danielle Enright / Makenzie Kinloch
2026-05-22 · #2 Doubles · 5.0 · with Sara Jandova
−0.011below expectation — took 47% of games against 54% expected
6-3, 1-6, 1-0
W
Willemijn de Clercq / Catherine Foster
2026-04-19 · #1 Doubles · 4.5 · with Khaliun Enkhjargal
+0.062better than expected — took 92% of games against 57% expected
6-1, 6-0
W
2026-04-18 · #2 Doubles · 5.0 · with Irene Huang
+0.082better than expected — took 75% of games against 38% expected
6-2, 6-2
W
2026-04-10 · #2 Doubles · 4.5 · with Connie Cai
+0.009about as expected — took 59% of games against 54% expected
6-4, 7-5
W
KC Mattingly-Nelson / Jacob Silaccichamps
2025-12-12 · #1 Doubles · with Kevin Pham
−0.023below expectation — took 56% of games against 63% expected
3-6, 6-2, 1-0
W
2025-11-02 · #3 Doubles · 9.0 · with Jonny Tat
+0.000better than expected — took 68% of games against 58% expected
7-5, 6-1
W
Kristin Anderson / Abraham Ahnmixed
2025-11-01 · #3 Doubles · 8.0 · with Kevin Pham
+0.000better than expected — took 86% of games against 62% expected
6-2, 6-0
W
2025-10-18 · #1 Doubles · 9.0 · with Lucas Kim
+0.000better than expected — took 80% of games against 63% expected
6-1, 6-2
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.