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Hiromichi Yamamoto

Seattle, WA
4.5C year-end 2025
158 matches · 108W–50L · seasons 2020–2026
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.

4.31
estimated dynamic rating
Where the rating sits now, on 32 matches this season · USTA never publishes this number
0%
down to 4.0
99%
stay 4.5
1%
up to 5.0

A 4.5 runs from 4.01 to 4.50. 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
Seattle · 4.5
12 of 103
WA · 4.5
32 of 364

Hiromichi 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

Hiromichi has played at 4.0, 4.5 across 7 seasons — 1 move up and 0 down.

3.54.04.52020202120222023202420252026

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, Hiromichi has gone from the 91st to the 70th percentile of players at that level, 2022 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
4.0
72.7%
8W–3L · 66% of games
4.5
74.3%
52W–18L · 59.3% of games
5.0
42.9%
3W–4L · 45.6% of games
8.0mixed
71.9%
23W–9L · 60% of games
9.0mixed
72.7%
8W–3L · 57.1% of games

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

Match history158 matches
W
2026-07-23 · #1 Doubles · 4.5 · with Paul Yi
+0.035better than expected — took 67% of games against 49% expected
6-4, 6-2
L
2026-07-12 · #1 Doubles · with Elizabeth Sofranek
−0.025below expectation — took 44% of games against 55% expected
6-2, 3-6, 1-0
W
Bradley Hoefel / Esther Kimchamps
2026-07-11 · #2 Doubles · with Elizabeth Sofranek
+0.034better than expected — took 71% of games against 53% expected
6-1, 6-4
L
Joshua Bradshaw / Ginny Nguyenchamps
2026-07-11 · #1 Doubles · with Suzanne Vogt
−0.047below expectation — took 25% of games against 50% expected
6-1, 6-3
W
Ian Platou / Alyssa Fitzgeraldchamps
2026-07-10 · #1 Doubles · with Suzanne Vogt
+0.016better than expected — took 57% of games against 49% expected
6-7, 6-3, 1-0
L
2026-05-31 · #2 Doubles · 4.5 · with Djelli Berisha
−0.037below expectation — took 33% of games against 52% expected
6-3, 6-3
W
2026-05-30 · #1 Doubles · 5.0 · with Steven Balls
−0.015below expectation — took 52% of games against 59% expected
6-4, 5-7, 1-0
W
Pinoe Chu / Maxime Tokman
2026-05-17 · #2 Doubles · 4.5 · with Djelli Berisha
+0.021better than expected — took 62% of games against 51% expected
6-2, 7-6
L
Rajul Chikkalingaiah / Aman Manji
2026-05-16 · #1 Doubles · 5.0 · with Djelli Berisha
+0.047better than expected — took 47% of games against 31% expected
3-6, 6-3, 1-0
W
Kelvin Churcher / Raven Thio
2026-05-15 · #2 Doubles · 5.0 · with Jayson Shieh
+0.047better than expected — took 63% of games against 42% expected
6-3, 6-4
W
Patrick Boyle / Corey Tam
2026-05-01 · #2 Doubles · 4.5 · with Michael Liao
+0.021better than expected — took 75% of games against 61% expected
6-2, 6-2
L
Andrew Huang / Benjamin Elliott
2026-04-25 · #2 Doubles · 5.0 · with Jayson Shieh
−0.036below expectation — took 14% of games against 38% expected
6-1, 6-1
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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.