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WonKyu Kim

Beaverton, OR
3.5C year-end 2025
142 matches · 78W–64L · 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.

3.07
estimated dynamic rating
Where the rating sits now, on 12 matches this season · USTA never publishes this number
18%
down to 3.0
82%
stay 3.5
0%
up to 4.0
Projected to December: 11% down · 89% stay · 0% up, from a year-end estimate of 3.10. Higher than today’s 3.07 because players this far below their band have historically finished nearer the middle of it.

A 3.5 runs from 3.01 to 3.50. 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
Beaverton · 3.5
51 of 55
OR · 3.5
678 of 735

WonKyu 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.

Teams27 teams · 2019–2026
SAC-Ko
2026 Mixed 18 & Over · 7.0 Mixed
2026
SAC-Boyce/Ko
2026 Adult 40 & Over · 3.5 Men
2026
SAC-Boyce/Ko
2026 Adult 18 & Over · 3.5 Men
2026
SAC-Boyce/Ko
2025 Adult 18 & Over · 3.5 Men
2025
SAC-Boyce/Ko
2025 Adult 40 & Over · 3.5 Men
2025
SAC-Boyce/von Haartman
2024 Mixed 40 & Over · 7.0 Mixed
2024
Over timerating by season, and how you rank
Rating by season

WonKyu has played at 3.0, 3.5 across 8 seasons — 1 move up and 0 down.

2.53.03.520192020202120222023202420252026

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, WonKyu has gone from the 42nd to the 13th percentile of players at that level, 2023 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 level4 levels played
3.0
82.4%
28W–6L · 63.4% of games
3.5
37.5%
15W–25L · 45.1% of games
6.0mixed
65%
13W–7L · 58.8% of games
7.0mixed
22.2%
4W–14L · 42.4% of games

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

Match history142 matches
W
N/A
2026-06-13 · SAC-Boyce/Ko · #3 Doubles · 3.5 · with Joshua Tran
+0.005better than expected — took 100% of games against 81% expected
6-0, 6-0
L
2026-06-07 · SAC-Boyce/Ko · #2 Doubles · 3.5 · with Joshua Tran
+0.002about as expected — took 32% of games against 36% expected
6-0, 7-6
W
Luke Li / Zi Wang
2026-05-31 · SAC-Boyce/Ko · #3 Doubles · 3.5 · with Jonathan Lo
+0.003about as expected — took 47% of games against 48% expected
2-6, 6-4, 1-0
L
2026-05-30 · SAC-Boyce/Ko · #2 Doubles · 3.5 · with Jonathan Lo
0.007about as expected — took 41% of games against 45% expected
6-1, 3-6, 1-0
L
Adam Rainey / Andrew Oh
2026-05-24 · SAC-Boyce/Ko · #2 Doubles · 3.5 · with Jonathan Lo
0.007below expectation — took 35% of games against 41% expected
7-6, 6-1
L
2026-05-08 · SAC-Boyce/Ko · #2 Doubles · 3.5 · with Paul Harwood
+0.001below expectation — took 29% of games against 35% expected
6-4, 6-1
L
2026-05-02 · SAC-Boyce/Ko · #2 Doubles · 3.5 · with Arjun Bilakanti
0.015below expectation — took 25% of games against 38% expected
6-3, 6-1
L
David Howard / William Allers
2026-02-14 · SAC-Boyce/Ko · #3 Doubles · 3.5 · with Jonathan Lo
0.001about as expected — took 38% of games against 41% expected
7-5, 6-3
L
2025-11-30 · SAC-Ko · #2 Doubles · 7.0 · with Heather Lee
+0.000below expectation — took 42% of games against 55% expected
6-2, 4-6, 1-0
L
Andrew Petersen / Adele Prestonmixed
2025-10-11 · SAC-Ko · #1 Doubles · 7.0 · with Jinmi Kemple
+0.000below expectation — took 8% of games against 38% expected
6-1, 6-0
L
2025-09-21 · SAC-Ko · #3 Doubles · 7.0 · with Heather Lee
+0.000below expectation — took 20% of games against 46% expected
6-0, 6-3
L
2025-09-13 · SAC-Ko · #1 Doubles · 7.0 · with Heather Lee
+0.000below expectation — took 33% of games against 42% expected
6-2, 6-4
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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.