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Masayo Kobashi

Long Grove, IL
3.5C year-end 2025
76 matches · 51W–25L · seasons 2025–2026
Bump probability
3.03.54.0lowhigh
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.
3.39
estimated dynamic rating
Where the rating sits now, on 58 matches this season · USTA never publishes this number
0%
down to 3.0
91%
stay 3.5
9%
up to 4.0
Projected to December: 0% down · 98% stay · 2% up, from a year-end estimate of 3.34. Lower than today’s 3.39 because form regresses — players this far into 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 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.
i
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
IL · 3.5
128 of 327
By our estimated rating, not the published level.
i
Masayo 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

Masayo has been a steady 3.5 across all 2 seasons on record.

3.03.520252026

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, Masayo has gone from the 73rd to the 78th percentile of players at that level, 2025 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
3.5
70.6%
24W–10L · 58.5% of games
6.5
1W–2L
not enough matches yet
7.0
72.4%
21W–8L · 56.2% of games
8.0
62.5%
5W–3L · 55.6% of games

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

Match history76 matches
L
2026-08-03 · #3 Doubles · 8.0 · with Pamela Blumenthal
−0.062below expectation — took 25% of games against 56% expected
6-3, 6-1
L
Jessica Moyer / Mary Gutowski-Hazzardchamps
2026-08-02 · #1 Doubles · with Susan Ellison
expectation pending — we're still fetching an opponent's record
6-1, 6-2
L
Jamie Gorey / Karen Koopermanchamps
2026-08-02 · #2 Doubles · with Susan Ellison
expectation pending — we're still fetching an opponent's record
6-4, 7-6
W
Viktorya Sokol / Rachel Kaiser
2026-07-26 · #1 Doubles · 3.5 · with Susan Ellison
expectation pending — we're still fetching an opponent's record
7-6, 4-2
W
Karla Gidwani / Neli Alexieva
2026-07-25 · #1 Doubles · 6.5 · with Gabrielle Armstrong
expectation pending — we're still fetching an opponent's record
6-3, 6-4
W
Maria Lobo-Corey / Irene Salerno
2026-07-22 · #1 Doubles · 3.5 · with Susan Ellison
expectation pending — we're still fetching an opponent's record
6-2, 6-4
W
Mimi Paffrath / Susan Tuthill
2026-07-16 · #1 Doubles · 7.0 · with Maria Lourdes Bandelow
expectation pending — we're still fetching an opponent's record
6-2, 6-2
W
Diane Thomason / Jessica Moyer
2026-07-14 · #1 Doubles · 3.5 · with SoYoung Grote
expectation pending — we're still fetching an opponent's record
4-6, 6-5, 1-0
L
2026-07-12 · #2 Doubles · 8.0 · with Pamela Blumenthal
−0.006about as expected — took 37% of games against 42% expected
6-3, 6-4
L
2026-07-11 · #1 Doubles · 6.5 · with Samantha Garrity
−0.018below expectation — took 25% of games against 38% expected
6-1, 6-3
W
Mandy Shaw / Christine Kupfer
2026-07-06 · #1 Doubles · 7.0 · with Susan Ellison
expectation pending — we're still fetching an opponent's record
7-5, 4-1
L
2026-06-28 · #1 Doubles · 7.0 · with Karen Hirsch
expectation pending — we're still fetching an opponent's record
6-1, 4-6, 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.