MatchPoint

Player profile

Kathi Peterson’s NorCal tennis rating

Kathi Peterson
USTA 3.5 · NorCal league player
3.42
current
▲ +0.08 this season

Other formats · don’t affect your rating above

Combo 3.64
USTA3.50
2026
19 matches
3.493.283.08
Jan · 3.35
Jun · 3.42
Jun 28 · Doubles−0.07
L S. Pae / I. Oliva
3-6,4-6 · with Rosalie Calabrese
● 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

19 matches

Published NorCal results in 2026 — 12 scoring, 7 combo or mixed. Combo and mixed don’t affect NTRP ratings.

Jun 28, 2026 · Doubles

Lost 3-6,4-6
−0.07

Kathi’s side

Kathi PetersonCurrently on SUN CITY LINCOLN CW7.5A-DT
3.42
Rosalie Calabrese(partner)Currently on SIERRA VIEW CW6.5A
3.32

Opponents

Soo PaeCurrently on JOHNSON RANCH 55MX8.0A
3.74
Irenessa OlivaCurrently on JOHNSON RANCH 55MX8.0A
3.59
Rating 3.49 → 3.42Doubles result

Jun 10, 2026 · Singles

Won 6-1,6-2
+0.21

Kathi’s side

Kathi PetersonCurrently on SUN CITY LINCOLN CW7.5A-DT
3.42

Opponents

Elaine YapCurrently on BROADSTONE RC CW7.5A-DT
3.54
Rating 3.10 → 3.32Singles result

May 23, 2026 · Doubles · Combo

Won 6-1,6-4
+0.02

Kathi’s side

Kathi PetersonCurrently on SUN CITY LINCOLN CW7.5A-DT
3.64
Julie Wong(partner)Currently on SIERRA VIEW CW6.5A
2.96

Opponents

Katherine Kelly
2.80
Sharon Klotz
3.13
Combo rating 3.62 → 3.64Doubles result

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

May 9, 2026 · Doubles · Combo

Lost 6-1,2 RE-6
−0.10

Kathi’s side

Kathi PetersonCurrently on SUN CITY LINCOLN CW7.5A-DT
3.64
Rhona Wu(partner)Currently on SUN CITY LINCOLN CW7.5A-DT
3.24

Opponents

Colleen BuckCurrently on JOHNSON RANCH CW7.5A-DT
3.57
Caryn WongCurrently on JOHNSON RANCH CW7.5B
3.72
Combo rating 3.72 → 3.62Doubles result

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

May 3, 2026 · Doubles · Combo

Lost 2-6,4-6
−0.20

Kathi’s side

Kathi PetersonCurrently on SUN CITY LINCOLN CW7.5A-DT
3.64
Tamara Jerd(partner)Currently on SIERRA VIEW CW6.5A
3.33

Opponents

Katrin ChutkaCurrently on GOLD RIVER RC CW7.5B-DT
3.47
Julie PeabodyCurrently on RIO DEL ORO CW6.5B
3.65
Combo rating 3.92 → 3.72Doubles result

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

Apr 29, 2026 · Doubles · Combo

Won 6-1,7-6
+0.05

Kathi’s side

Kathi PetersonCurrently on SUN CITY LINCOLN CW7.5A-DT
3.64
Tamara Jerd(partner)Currently on SIERRA VIEW CW6.5A
3.33

Opponents

Michelle ChristensenCurrently on LAGUNA CREEK CW7.5A-DT
3.43
Sharon Pelfrey
3.25
Combo rating 3.87 → 3.92Doubles result

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

Apr 7, 2026 · Doubles · Combo

Won 6-1,4-6,1-0
+0.09

Kathi’s side

Kathi PetersonCurrently on SUN CITY LINCOLN CW7.5A-DT
3.64
Rosalie Calabrese(partner)Currently on SIERRA VIEW CW6.5A
3.34

Opponents

Duffy KellyCurrently on RIO DEL ORO CW7.5A
3.47
Catherine MickleCurrently on RIO DEL ORO CW7.5A-DT
3.77
Combo rating 3.78 → 3.87Doubles result

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

Apr 4, 2026 · Doubles · Combo

Won 7-6,6-0
+0.03

Kathi’s side

Kathi PetersonCurrently on SUN CITY LINCOLN CW7.5A-DT
3.64
Rosalie Calabrese(partner)Currently on SIERRA VIEW CW6.5A
3.34

Opponents

Liz Bissell
3.25
Lisa Martucci-gibbsCurrently on BROADSTONE RC CW7.5A-DT
3.14
Combo rating 3.75 → 3.78Doubles result

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

Mar 24, 2026 · Doubles · Combo

Won 6-2,6-2
+0.01

Kathi’s side

Kathi PetersonCurrently on SUN CITY LINCOLN CW7.5A-DT
3.64
Rosalie Calabrese(partner)Currently on SIERRA VIEW CW6.5A
3.34

Opponents

Evelyne JametCurrently on RIO DEL ORO CW6.5A
2.90
Sheena NashCurrently on RIO DEL ORO CW7.5B
3.20
Combo rating 3.74 → 3.75Doubles result

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

Mar 12, 2026 · Doubles

Lost 6-7,6-3,0-1
−0.11

Kathi’s side

Kathi PetersonCurrently on SUN CITY LINCOLN CW7.5A-DT
3.42
Rosalie Calabrese(partner)Currently on SIERRA VIEW CW6.5A
3.32

Opponents

Ruth RuffeCurrently on GOLD RIVER RC CW7.5B-DT
3.30
Denise ChisickCurrently on BROADSTONE RC CW7.5A-DT
3.24
Rating 3.19 → 3.08Doubles result

Feb 26, 2026 · Singles

Won 6-0,3-6,1-0
+0.16

Kathi’s side

Kathi PetersonCurrently on SUN CITY LINCOLN CW7.5A-DT
3.42

Opponents

Vivi ZhangCurrently on JOHNSON RANCH 55MX7.0A
3.59
Rating 3.11 → 3.26Singles result

Feb 14, 2026 · Singles

Won 7-5,2-6,1-0
+0.07

Kathi’s side

Kathi PetersonCurrently on SUN CITY LINCOLN CW7.5A-DT
3.42

Opponents

Laureen KoubaCurrently on SUN CITY LINCOLN CW7.5A-DT
3.30
Rating 3.13 → 3.20Singles result

Jan 17, 2026 · Singles

Lost 4-6,2-6
−0.05

Kathi’s side

Kathi PetersonCurrently on SUN CITY LINCOLN CW7.5A-DT
3.42

Opponents

Maria MiraCurrently on STONEGATE CC CW7.5A-DT
3.71
Rating 3.18 → 3.13Singles result
Best match
+0.21
Jun 10 vs Elaine Yap
Worst match
−0.17
Jan 8 vs M. Garcia / M. Macintosh
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

Kathi Peterson’s MatchPoint NorCal tennis rating is 3.42, an independent estimate based on published NorCal league results through September 20, 2026. They are currently rostered on 2 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−0.043.30
Pulled toward the 2025 year-end level−0.043.35

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