MatchPoint

Player profile

Jonathan Chinn’s NorCal tennis rating

Jonathan Chinn
USTA 4.5 · NorCal league player
4.45
current
▲ +0.01 this season

Other formats · don’t affect your rating above

Combo 4.38
USTA4.50
2026
8 matches
4.614.504.38
Feb · 4.56
May · 4.45
Sep 20 · Doubles−0.23
L N. Notti / J. Bousquet
4-6,1-6 · 2D · with Brian Johnson
● Won ● Lost · Select a point to see that match.Your whole season is recalculated every night, so earlier points can shift as new results come in.

Current season

8 matches

Published NorCal results in 2026 — 5 scoring, 3 combo or mixed. Combo and mixed don’t affect NTRP ratings.

Sep 20, 2026 · Doubles · 2D · Combo

Lost 4-6,1-6
−0.23

Jonathan’s side

Jonathan ChinnCurrently on GALVIN PK CM8.5A
4.38
Brian Johnson(partner)Currently on ROHNERT PK TC/MAGNOLIA/M PK CM7.5A
3.91

Opponents

Nick NottiCurrently on RAFAEL RC CM8.5A
4.19
Jason BousquetCurrently on RAFAEL RC CM8.5A
4.14
Combo rating 4.61 → 4.38Doubles result

Combo results move their own rating, not your NTRP — USTA computes NTRP from adult singles and doubles only.

Sep 12, 2026 · Doubles · 2D · Combo

Won 7-5,6-4
+0.09

Jonathan’s side

Jonathan ChinnCurrently on GALVIN PK CM8.5A
4.38
Brian Johnson(partner)Currently on ROHNERT PK TC/MAGNOLIA/M PK CM7.5A
3.91

Opponents

Frank YoungCurrently on MILL VALLEY CM9.5A
4.31
Mark ShawCurrently on MILL VALLEY CM8.5A
4.21
Combo rating 4.53 → 4.61Doubles result

Combo results move their own rating, not your NTRP — USTA computes NTRP from adult singles and doubles only.

Aug 30, 2026 · Doubles · 2D · Combo

Won 6-3,6-4
+0.06

Jonathan’s side

Jonathan ChinnCurrently on GALVIN PK CM8.5A
4.38
Brian Johnson(partner)Currently on ROHNERT PK TC/MAGNOLIA/M PK CM7.5A
3.91

Opponents

Thomas MayesCurrently on LAGUNITAS CC CM8.5A
4.11
Cole Van BruntCurrently on LAGUNITAS CC CM8.5A
4.04
Combo rating 4.47 → 4.53Doubles result

Combo results move their own rating, not your NTRP — USTA computes NTRP from adult singles and doubles only.

Best match
+0.16
May 8 vs B. Heiland / L. Lawsin
Worst match
−0.13
Feb 28 vs R. Herbst / N. Opderbeck
Where you started ›4.44
2023 year-end NTRP 4.54.30
Scale calibration+0.14
Season start4.44
Your starting point comes from your official year-end NTRP, not from any third-party rating. The calibration is a fixed shift that puts our scale on the same level as NTRP.
▲
Combo and mixed matches aren’t included. This rating is built from standard men’s and women’s league play only — combo and mixed results feed your separate combo/mixed ratings, not this one.
Updated Sep 20

Jonathan Chinn’s MatchPoint NorCal tennis rating is 4.45, an independent estimate based on published NorCal league results through September 20, 2026. They are currently rostered on GALVIN PK CM8.5A.

MatchPoint ratings are estimates based on published USTA NorCal league results. Data through September 20, 2026.

Year-end re-anchoring
Pulled toward the 2024 year-end level−0.004.44
Pulled toward the 2025 year-end level−0.024.56

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