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Kourtnie Katayama

PORTLAND, OR
3.5C year-end 2025
91 matches · 43W–48L · seasons 20192026
Bump probability
3.03.54.0lowhigh

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.

3.33
estimated dynamic rating
Where the rating sits now, on 11 matches this season · USTA never publishes this number
0%
down to 3.0
99%
stay 3.5
1%
up to 4.0

A 3.5 runs from 3.01 to 3.50. This rating sits in the upper 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
PORTLAND · 3.5
10 of 17
OR · 3.5
257 of 735

Kourtnie 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

Kourtnie has played at 3.0, 3.5 across 7 seasons — 1 move up and 0 down.

2.53.03.52019202020222023202420252026

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 3.5, Kourtnie has gone from the 58th to the 56th percentile of players at that level, 2024 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 level5 levels played
3.0
62.2%
23W–14L · 56.6% of games
3.5
36.4%
8W–14L · 48.7% of games
7.0
25%
1W–3L · 47.6% of games
6.0mixed
50%
7W–7L · 49.8% of games
7.0mixed
22.2%
2W–7L · 41.4% of games

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

Match history91 matches
W
2026-06-06 · #1 Singles · 3.5
+0.031better than expected — took 80% of games against 60% expected
6-2, 6-1
L
2026-05-30 · #1 Singles · 3.5
+0.031better than expected — took 41% of games against 32% expected
6-4, 7-5
W
2026-05-03 · #2 Singles · 3.5
0.011better than expected — took 86% of games against 77% expected
6-1, 6-1
L
2026-04-24 · #1 Singles · 3.5
0.003about as expected — took 35% of games against 39% expected
7-5, 6-2
L
2026-04-17 · #1 Singles · 3.5
+0.056better than expected — took 41% of games against 24% expected
6-4, 7-5
L
2026-03-07 · #1 Female Doubles · 7.0 · with Adele Preston
+0.016better than expected — took 45% of games against 39% expected
6-5
L
2026-03-01 · #1 Female Doubles · 7.0 · with Adele Preston
0.007about as expected — took 40% of games against 44% expected
6-4
W
2026-02-07 · #1 Female Singles · 7.0
0.026below expectation — took 60% of games against 67% expected
6-4
L
2026-01-09 · #1 Female Doubles · 7.0 · with Helena Thornton - *
+0.010about as expected — took 45% of games against 41% expected
6-5
L
2025-10-17 · #3 Doubles · 7.0 · with Manoj Agnihotri
+0.000about as expected — took 38% of games against 38% expected
7-6, 6-2
L
2025-09-28 · #1 Doubles · 7.0 · with Patrick Morrissey
+0.000below expectation — took 8% of games against 34% expected
6-1, 6-0
L
Zoe Larkinschamps
2025-06-27 · #1 Singles
+0.011better than expected — took 48% of games against 43% expected
6-4, 5-7, 1-0
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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.