Mar 12, 2026 · Doubles
Lost 5-7,3-6
−0.09
Opponents
Rob LamourCurrently on GOLDMAN TC CM8.5A
4.63Justin LuCurrently on FOSTER CITY TC/EDGEWATER PK 55MX9.0A
4.53Rating 4.47 → 4.39Doubles result
Player profile
Jay Gierak’s NorCal tennis rating
Jay Gierak
USTA 4.5 · NorCal league player
current
▼ −0.05 this season
Active teams
No active team listing yet.
USTA4.50
2026
1 match
Mar · 4.47
Mar · 4.39
Mar 12 · Doubles−0.09
L R. Lamour / J. Lu
5-7,3-6 · with Michael Gross
● 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
1 match
Published NorCal league results in 2026.
Best match
−0.09
Mar 12 vs R. Lamour / J. Lu
Worst match
−0.09
Mar 12 vs R. Lamour / J. Lu
Where you started ›4.44
2022 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
Jay Gierak’s MatchPoint NorCal tennis rating is 4.39, 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+0.024.46
Pulled toward the 2025 year-end level+0.024.47
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