Jun 12, 2025 · Doubles
Lost 4-6,3-6
−0.04
Opponents
Cynthia Leigh ZerboniCurrently on CHAMISAL TC CW7.5A-DT
3.40Carolyn GallegoCurrently on CHAMISAL TC CW7.5A
3.08Rating 2.93 → 2.89Doubles result
Player profile
Sonda M Frudden’s NorCal tennis rating
Sonda M Frudden
USTA 3.0 · NorCal league player
current
▲ +0.08 this season
Active teams
No active team listing yet.
USTA3.00
2025
7 matches
Feb · 3.00
Jun · 2.89
Jun 12 · Doubles−0.04
L C. Zerboni / C. Gallego
4-6,3-6 · with Aunikah Bastian
● 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
0 matches
Published NorCal league results in 2026.
May 17, 2025 · Singles
Lost 4-6,1-6
−0.14
Sonda’s side
2.87
Opponents
Sehee HongCurrently on SUNNYVALE TC/SUNNYVALE MTC 40MX6.0B
2.97Rating 3.06 → 2.93Singles result
May 13, 2025 · Singles
Won 6-1,6-0
+0.14
Sonda’s side
2.87
Opponents
2.93
Rating 2.92 → 3.06Singles result
Mar 16, 2025 · Singles
Won 6-3,6-0
+0.17
Sonda’s side
2.87
Opponents
Jennifer MurphyCurrently on SEASCAPE SC CW6.5A
2.85Rating 2.75 → 2.92Singles result
Mar 15, 2025 · Doubles
Lost 1-6,0-6
−0.01
Rating 2.77 → 2.75Doubles result
Feb 23, 2025 · Singles
Lost 6-3,5-7,0-1
−0.12
Sonda’s side
2.87
Opponents
2.72
Rating 2.88 → 2.77Singles result
Feb 22, 2025 · Doubles
Lost 7-6,2-6,0-1
−0.12
Opponents
Allison ZunigaCurrently on SEASCAPE SC CW6.5A
2.85Christine StyleCurrently on SEASCAPE SC CW6.5A
2.73Rating 3.00 → 2.88Doubles result
Best match
+0.17
Mar 16 vs Jennifer Murphy
Worst match
−0.14
May 17 vs Sehee Hong
Where you started ›2.79
2023 year-end NTRP 3.02.65
Scale calibration+0.14
Season start2.79
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
Sonda M Frudden’s MatchPoint NorCal tennis rating is 2.87, 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+0.213.00
Pulled toward the 2025 year-end level−0.022.87
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