MatchPoint

Player profile

Heidi Corkern’s NorCal tennis rating

Heidi Corkern
USTA 3.5 · NorCal league player
3.33
current
▼ −0.01 this season

Other formats · don’t affect your rating above

Combo 3.14
USTA3.50
2026
13 matches
3.343.193.03
Jan · 3.17
May · 3.33
Sep 17 · Doubles−0.06
L D. Castillano / C. Start
5-7,3-6 · 1D · with Melissa Kapulica
● 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

13 matches

Published NorCal results in 2026 — 10 scoring, 3 combo or mixed. Combo and mixed don’t affect NTRP ratings.

Sep 17, 2026 · Doubles · 1D · Combo

Lost 5-7,3-6
−0.06

Heidi’s side

Heidi CorkernCurrently on DIABLO CC CW7.5A-DT
3.14
Melissa Kapulica(partner)Currently on DIABLO CC CW6.5A-DT
2.79

Opponents

Dorita CastillanoCurrently on UNION CITY LEISURE S/VETERANS MEM PK 40MX8.0A
3.38
Christine StartCurrently on WILLOW PASS PK CW7.5A
3.48
Combo rating 3.20 → 3.14Doubles result

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

Sep 16, 2026 · Doubles · 3D · Combo

Won 6-0,3-6,1-0
+0.14

Heidi’s side

Heidi CorkernCurrently on DIABLO CC CW7.5A-DT
3.14
Veronica Butcher(partner)Currently on DIABLO CC CW7.5A-DT
3.47

Opponents

Dana KrugerCurrently on CROW CANYON CC CW7.5A-DT
3.01
Heather BrownCurrently on WALNUT CREEK RC/Walnut Creek TC CW7.5B
3.54
Combo rating 3.05 → 3.20Doubles result

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

Aug 25, 2026 · Doubles · 3D · Combo

Lost 5-7,4-6
−0.04

Heidi’s side

Heidi CorkernCurrently on DIABLO CC CW7.5A-DT
3.14
Michelle Gherlone(partner)Currently on DIABLO CC CW6.5A-DT
2.94

Opponents

Robyn SchleifmanCurrently on WASHINGTON PK CW6.5A
3.40
Britney AguilarCurrently on PLEASANTON CW6.5A
3.28
Combo rating 3.10 → 3.05Doubles result

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

May 14, 2026 · Doubles

Won 7-5,7-5
+0.06

Heidi’s side

Heidi CorkernCurrently on DIABLO CC CW7.5A-DT
3.33
Sia Mcdonald(partner)Currently on DIABLO CC CW7.5A-DT
3.34

Opponents

Florence HuangCurrently on WALNUT COUNTRY HOA 55MX7.0A
3.12
Patty LyCurrently on WALNUT COUNTRY HOA 40MX7.0A
3.03
Rating 3.27 → 3.33Doubles result

Apr 18, 2026 · Doubles

Won 4-6,6-3,1-0
+0.08

Heidi’s side

Heidi CorkernCurrently on DIABLO CC CW7.5A-DT
3.33
Rochelle Rich(partner)Currently on DIABLO CC CW7.5A-DT
3.30

Opponents

Amy BullCurrently on PLEASANTON CW6.5A
3.35
Melissa SanoCurrently on PLEASANTON CW7.5B
3.06
Rating 3.18 → 3.25Doubles result

Mar 14, 2026 · Doubles

Lost 5-7,5-7
−0.09

Heidi’s side

Heidi CorkernCurrently on DIABLO CC CW7.5A-DT
3.33
Nancy Daetz(partner)Currently on DIABLO CC CW7.5A-DT
3.19

Opponents

Sanna GarciaCurrently on MONTE VISTA HS CW7.5A
3.27
Jessica VasishtCurrently on MONTE VISTA HS CW7.5A
3.45
Rating 3.27 → 3.18Doubles result

Mar 3, 2026 · Doubles

Won 6-2,6-2
+0.05

Heidi’s side

Heidi CorkernCurrently on DIABLO CC CW7.5A-DT
3.33
Lindsay Walker(partner)Currently on DIABLO CC CW6.5A-DT
3.24

Opponents

Yulia CostelloCurrently on STONEBRAE CC CW6.5A-DT
2.96
Traci RebiejoCurrently on WALNUT CREEK RC/Walnut Creek TC CW6.5B
2.70
Rating 3.22 → 3.27Doubles result

Jan 31, 2026 · Doubles

Won 6-3,6-4
+0.12

Heidi’s side

Heidi CorkernCurrently on DIABLO CC CW7.5A-DT
3.33
Lindsay Walker(partner)Currently on DIABLO CC CW6.5A-DT
3.24

Opponents

Diane ChinnCurrently on THE CLUB @LIVERMORE CW7.5A
3.24
Pensri WalshCurrently on RUBY HILL GC CW7.5A-DT
3.38
Rating 3.16 → 3.28Doubles result

Jan 22, 2026 · Doubles

Won 3-6,6-1,1-0
+0.12

Heidi’s side

Heidi CorkernCurrently on DIABLO CC CW7.5A-DT
3.33
Nancy Daetz(partner)Currently on DIABLO CC CW7.5A-DT
3.19

Opponents

Florence HuangCurrently on WALNUT COUNTRY HOA 55MX7.0A
3.12
Sanna GarciaCurrently on MONTE VISTA HS CW7.5A
3.27
Rating 3.03 → 3.16Doubles result

Jan 21, 2026 · Doubles

Lost 3-6,4-6
−0.14

Heidi’s side

Heidi CorkernCurrently on DIABLO CC CW7.5A-DT
3.33
Rochelle Rich(partner)Currently on DIABLO CC CW7.5A-DT
3.30

Opponents

Emily AmottCurrently on DIABLO CC CW7.5A-DT
3.28
Cindy RaykiewiczCurrently on CROW CANYON CC CW7.5A-DT
3.33
Rating 3.17 → 3.03Doubles result
Best match
+0.12
Jan 22 vs F. Huang / S. Garcia
Worst match
−0.14
Jan 21 vs E. Amott / C. Raykiewicz
Where you started ›3.34
2023 year-end NTRP 3.53.20
Scale calibration+0.14
Season start3.34
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

Heidi Corkern’s MatchPoint NorCal tennis rating is 3.33, an independent estimate based on published NorCal league results through September 20, 2026. They are currently rostered on 3 active NorCal league teams.

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−0.003.34
Pulled toward the 2025 year-end level+0.023.17

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