MatchPoint

Player profile

Seth Petersen’s NorCal tennis rating

Seth Petersen
USTA 4.0 · NorCal league player
3.71
current
▼ −0.18 this season

Other formats · don’t affect your rating above

Combo 3.79

Active teams

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USTA4.00
2026
10 matches
3.873.773.66
Jan · 3.66
Jun · 3.71
Jun 14 · Doubles−0.05
L W. Ryckman / N. Strong
2-6,0-6 · with Minh Ta
● 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

10 matches

Published NorCal results in 2026 — 6 scoring, 4 combo or mixed. Combo and mixed don’t affect NTRP ratings.

May 24, 2026 · Doubles · Combo

Lost 5-7,6-3,0-1
−0.09

Seth’s side

Seth Petersen
3.79
Luis Nanez(partner)Currently on ROHNERT PK TC/MAGNOLIA/M PK CM7.5A
3.79

Opponents

Israel RosalesCurrently on MILL VALLEY CM8.5A
4.01
Thomas ByrneCurrently on OLYMPIC CM7.5A
3.78
Combo rating 3.88 → 3.79Doubles result

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

May 21, 2026 · Doubles · Combo

Won 6-3,6-4
+0.05

Seth’s side

Seth Petersen
3.79
Shane Grevin(partner)Currently on ROHNERT PK TC/MAGNOLIA/M PK CM7.5A
3.93

Opponents

Charles SpelmanCurrently on MARIN TC 55MX8.0B
3.55
Jason GoodrickCurrently on ROLLING HILLS CM7.5A
3.35
Combo rating 3.83 → 3.88Doubles result

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

May 16, 2026 · Doubles · Combo

Won 2-6,6-4,1-0
+0.05

Seth’s side

Seth Petersen
3.79
Chris Micco(partner)
3.81

Opponents

Peter TeeseCurrently on HARBOR PT 55MX8.0A
3.58
Peter Levi
3.38
Combo rating 3.77 → 3.83Doubles result

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

Apr 12, 2026 · Doubles · Combo

Won 7-6,6-4
+0.08

Seth’s side

Seth Petersen
3.79
Geoffrey Kegley(partner)Currently on ROHNERT PK TC/MAGNOLIA/M PK S70M8.0A
3.78

Opponents

Scott DaltonCurrently on MILL VALLEY CM8.5A
3.65
Van Wilshire
3.49
Combo rating 3.69 → 3.77Doubles result

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

Mar 8, 2026 · Doubles

Lost 3-6,4-6
−0.10

Seth’s side

Seth Petersen
3.71
Howard Schnirman(partner)Currently on ROHNERT PK TC/MAGNOLIA/M PK CM8.5A
3.98

Opponents

Ian HannahCurrently on ROLLING HILLS 40MX8.0A
3.84
Blain WongCurrently on ROHNERT PK TC/MAGNOLIA/M PK CM7.5A
4.00
Rating 3.80 → 3.70Doubles result
Best match
+0.14
Jan 18 vs W. Abrams / D. Levine
Worst match
−0.10
Mar 8 vs I. Hannah / B. Wong
Where you started ›3.89
2023 year-end NTRP 4.03.75
Scale calibration+0.14
Season start3.89
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

Seth Petersen’s MatchPoint NorCal tennis rating is 3.71, an independent estimate based on published NorCal league results through September 20, 2026.

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+0.063.95
Pulled toward the 2025 year-end level+0.093.66

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