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Yumiko Tokiwa

Irvine, CA
4.0C year-end 2025
295 matches · 207W–88L · seasons 2019–2026
Bump probability
3.54.04.5lowhigh
Where this rating stands today. Taller means more likely.
i
The dashed lines are the edges of your band. The three shaded areas are exactly the three percentages below — area here is the chance of one outcome for you, not a count of players.
4.06
estimated dynamic rating
Where the rating sits now, on 42 matches this season · USTA never publishes this number
0%
down to 3.5
22%
stay 4.0
78%
up to 4.5
Projected to December: 0% down · 68% stay · 32% up, from a year-end estimate of 3.96. Lower than today’s 4.06 because form regresses — players this far above their band partway through a season have historically finished nearer the middle of it. Keep playing at this level and the numbers above are the ones that hold.

A 4.0 runs from 3.51 to 4.00. This rating sits in the top of the band, and every match moves it.

Our estimate, not a USTA figure.
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scale measured at this point of 2023 on 2160 players. It moves when you play, and occasionally when we improve the model. USTA publishes year-end ratings in December, which is when this gets graded against what actually happened.
Where you rank
CA · 4.0
14 of 432
By our estimated rating, not the published level.
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Yumiko is ranked against players at the same level in the same place. The published level is identical for everyone in a band, so it cannot separate them — our estimate can. Groups smaller than five are not ranked at all, because a placing out of two is noise dressed as standing.
Over timerating by season, and how you rank
Rating by season

Yumiko has been a steady 4.0 across all 6 seasons on record.

3.54.0201920212022202420252026

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 4.0, Yumiko has gone from the 83rd to the 88th percentile of players at that level, 2019 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 level6 levels played
4.0
79.6%
125W–32L · 61% of games
4.5
47.4%
9W–10L · 46.2% of games
5.0
0W–1L
not enough matches yet
8.0
92.3%
12W–1L · 60.9% of games
9.0
77.8%
7W–2L · 63.7% of games
8.0mixed
54.5%
30W–25L · 54.2% of games

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

Match history295 matches
W
Sherryl Chaffin / Kelly Ross
2026-08-02 · #2 Doubles · 9.0 · with Karen Char
expectation pending — we're still fetching an opponent's record
6-4, 5-7, 1-0
W
Denise Vallin-Corona / Sherry Stone
2026-07-25 · #2 Doubles · 8.0 · with Cheryl Gates
expectation pending — we're still fetching an opponent's record
6-3, 6-3
W
Masako Mizuno / Sherryl Chaffin
2026-07-19 · #2 Doubles · 9.0 · with Karen Char
expectation pending — we're still fetching an opponent's record
6-0, 6-4
W
Ashley Glick / Huma Khan
2026-07-18 · #2 Doubles · 4.5 · with Sayuri Maruna
expectation pending — we're still fetching an opponent's record
7-5, 3-6, 1-0
L
Karissa Do / Leilani Liley
2026-07-18 · #3 Doubles · 5.0 · with Sayuri Maruna
expectation pending — we're still fetching an opponent's record
6-3, 5-4
L
Teresa Campbell / Darcy Simon
2026-07-12 · #1 Doubles · 9.0 · with Melanie McClain
expectation pending — we're still fetching an opponent's record
6-4, 6-1
W
Sunny Park / Susan Bartlett
2026-07-05 · #2 Doubles · 4.0 · with Sayuri Maruna
expectation pending — we're still fetching an opponent's record
6-0, 6-1
W
Yen Poon / Mary DeVlugt
2026-06-28 · #1 Doubles · 8.0 · with Sayuri Maruna
expectation pending — we're still fetching an opponent's record
7-5, 6-1
L
Andrea Kozak / Tana Ashton
2026-06-27 · #2 Doubles · 4.5 · with Rina Yasuda
expectation pending — we're still fetching an opponent's record
7-5, 6-3
W
Lea Tamblyn / Peter Wilsonmixed
2026-06-20 · #2 Doubles · 8.0 · with Steve Eperthener
mixed — doesn't count toward your NTRP rating
6-3, 6-3
W
Jacquelyn Warbiany / Jessica Papell
2026-06-19 · #1 Doubles · 4.0 · with Lori McFerren
expectation pending — we're still fetching an opponent's record
6-0, 6-1
W
Cathy Jackson / Robin Briones
2026-06-14 · #2 Doubles · 4.0 · with Lori McFerren
expectation pending — we're still fetching an opponent's record
7-5, 6-3
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