MatchPoint

Player profile

Katharine Heintz: estimated dynamic rating

Mixed · 2026
14 matches
3.382.962.53
Jun · 2.53
Nov · 3.36
Nov 1 · Doubles+0.09
W C. Shin / M. See
6-4,6-2 · 1D · with Craig Denamur
Your mixed rating, from mixed matches only. It doesn’t move your 2.81.● Won ● Lost · Select a point to see that match.Your whole season is recalculated daily, so earlier points can shift as new results come in.

Current season

38 matches

Published NorCal results in 2026 — 9 scoring, 29 combo or mixed. Combo and mixed don’t affect NTRP ratings.

Nov 1, 2026 · Doubles · 1D · Mixed

Won 6-4,6-2
+0.09

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.36
Craig Denamur(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.74

Opponents

Choon ShinCurrently on SANTA CLARA TC/SANTA CLARA TENNIS C 55MX7.0A
3.40
Mei SeeCurrently on SANTA CLARA TC/SANTA CLARA TENNIS C 55MX7.0A
3.17
Mixed rating 3.27 → 3.36Doubles result

Oct 25, 2026 · Doubles · 2D · Combo

Won 7-5,6-3
+0.23

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.86
Jane Ensor(partner)Currently on SAN JOSE SR CW7.5A
3.51

Opponents

Madhumita DattaCurrently on CUPERTINO TC/CUPERTINO SC CW7.5A
3.09
Julie JohnsonCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX6.0A
3.29
Combo rating 2.63 → 2.86Doubles result

Oct 18, 2026 · Doubles · 1D · Mixed

Lost 3-6,1-6
−0.02

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.36
John Pattinson(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.63

Opponents

Danny MirandaCurrently on MERVYN MORRIS PK 55MX8.0A
4.36
Dongjie FanCurrently on BAY CLUB SANTA CLARA 55MX7.0A
3.75
Mixed rating 3.29 → 3.27Doubles result

Oct 11, 2026 · Doubles · 2D · Mixed

Won 6-2,6-3
+0.01

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.36
Michel Schreurs(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC 55MX6.0A
3.06

Opponents

June LiCurrently on CUPERTINO TC/CUPERTINO SC CW6.5A-DT
2.68
Cliff NishimotoCurrently on SUNNYVALE TC/SUNNYVALE MTC S70M6.0A
2.89
Mixed rating 3.28 → 3.29Doubles result

Oct 10, 2026 · Doubles · 1D · Combo

Lost 3-6,2-6
−0.05

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.86
Mary Jo Lee(partner)Currently on SAN JOSE SR CW7.5A
3.17

Opponents

Lingqin YangCurrently on SUNNYVALE MTC CW6.5B
3.14
Xueying ShenCurrently on SUNNYVALE MTC CW6.5B
3.25
Combo rating 2.69 → 2.63Doubles result

Oct 7, 2026 · Doubles · 1D · Mixed

Lost 1-6,6-2,0-1
−0.10

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.36
Kumar Kandaswamy(partner)Currently on WALLENBERG PK CM7.5A
3.62

Opponents

Hong YuCurrently on CUPERTINO TC/CUPERTINO SC CW7.5A
3.62
Tony NhieuCurrently on CUPERTINO TC/CUPERTINO SC CM7.5B
3.35
Mixed rating 3.38 → 3.28Doubles result

Oct 4, 2026 · Doubles · 1D · Mixed

Won 6-1,6-2
+0.15

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.36
David Botkin(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC CM7.5C
3.82

Opponents

Bradford MeiselesCurrently on UNIVERSITY CLUB PA CM7.5A
3.55
Ruth TaylorCurrently on UNIVERSITY CLUB PA 55MX7.0A
3.30
Mixed rating 3.23 → 3.38Doubles result

Oct 3, 2026 · Doubles · 1D · Combo

Lost 2-6,3-6
−0.02

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.86
Barbara Westergren(partner)Currently on VILLAGES GCC S70W7.0A
3.18

Opponents

Mai PhamCurrently on SANTA CLARA TC/SANTA CLARA TENNIS C CW7.5A
3.81
Mijung ParkCurrently on SANTA CLARA TC/SANTA CLARA TENNIS C CW6.5A
3.28
Combo rating 2.71 → 2.69Doubles result

Sep 19, 2026 · Doubles · 2D · Mixed

Won 6-3,6-2
+0.06

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.36
David Taylor(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC CM6.5A-DT
3.15

Opponents

Kim StewartCurrently on CUPERTINO TC/CUPERTINO SC 55MX6.0A
2.37
Albert LawCurrently on CUPERTINO TC/CUPERTINO SC CM7.5B
3.25
Mixed rating 3.18 → 3.23Doubles result

Sep 12, 2026 · Doubles · 3D · Mixed

Lost 2-6,4-6
−0.05

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.36
Kumar Kandaswamy(partner)Currently on WALLENBERG PK CM7.5A
3.62

Opponents

Andrew HuangCurrently on RINCONADA PK CM7.5A
4.21
Shawna BallardCurrently on BAY CLUB SANTA CLARA 55MX7.0A
3.38
Mixed rating 3.23 → 3.18Doubles result

Sep 12, 2026 · Doubles · 2D · Combo

Lost 0-6,1-6
−0.10

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.86
Katie Diemer(partner)Currently on SAN JOSE SR CW6.5A
2.40

Opponents

Terry HuangCurrently on SUNNYVALE MTC CW6.5E
3.33
Yan HongCurrently on SUNNYVALE MTC CW6.5E
2.88
Combo rating 2.81 → 2.71Doubles result

Sep 6, 2026 · Doubles · 1D · Mixed

Won 6-2,2-6,1-0
+0.16

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.36
John Pattinson(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.63

Opponents

Karen ChenCurrently on MOUNTAIN VIEW TC/RENGSTORFF PK CW6.5A-DT
3.50
Derek ChenCurrently on CUPERTINO TC/CUPERTINO SC CM7.5C
3.65
Mixed rating 3.07 → 3.23Doubles result

Sep 5, 2026 · Doubles · 2D · Mixed

Won 6-4,6-2
+0.01

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.36
Michel Schreurs(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC 55MX6.0A
3.06

Opponents

June LiCurrently on CUPERTINO TC/CUPERTINO SC CW6.5A-DT
2.68
Venkata UppuluriCurrently on CUPERTINO TC/CUPERTINO SC CM6.5B-DT
2.57
Mixed rating 3.07 → 3.07Doubles result

Sep 2, 2026 · Doubles · 1D · Combo

Lost 4-6,6-7
−0.03

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.86
Jane Ensor(partner)Currently on SAN JOSE SR CW7.5A
3.51

Opponents

Karen ChenCurrently on MOUNTAIN VIEW TC/RENGSTORFF PK CW6.5A-DT
3.42
Kelly ChenCurrently on CUPERTINO TC/CUPERTINO SC CW6.5A
3.18
Combo rating 2.84 → 2.81Doubles result

Aug 29, 2026 · Doubles · 1D · Mixed

Won 6-3,6-2
+0.14

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.36
Kumar Kandaswamy(partner)Currently on WALLENBERG PK CM7.5A
3.62

Opponents

Nathan WalkerCurrently on UNIVERSITY CLUB PA CM7.5A
3.73
Caroline BowersCurrently on UNIVERSITY CLUB PA 55MX7.0A
3.04
Mixed rating 2.93 → 3.07Doubles result

Aug 29, 2026 · Doubles · 3D · Combo

Lost 2-6,2-6
−0.03

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.86
Mary Jo Lee(partner)Currently on SAN JOSE SR CW7.5A
3.17

Opponents

Xiaocen ShanCurrently on SUNNYVALE MTC CW6.5D
3.45
Caimei LeiCurrently on SUNNYVALE MTC CW6.5D
3.56
Combo rating 2.87 → 2.84Doubles result

Aug 16, 2026 · Doubles · 3D · Mixed

Won 6-2,6-2
+0.09

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.36
Kumar Kandaswamy(partner)Currently on WALLENBERG PK CM7.5A
3.62

Opponents

Basim NooriCurrently on SUNNYVALE TC/SUNNYVALE MTC CM6.5G
3.03
Jenny HubbertCurrently on SAN JOSE SR CW7.5A
3.04
Mixed rating 2.84 → 2.93Doubles result

Jul 23, 2026 · Doubles · Mixed

Lost 5-7,1-6
−0.07

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.36
Kumar Kandaswamy(partner)Currently on WALLENBERG PK CM7.5A
3.62

Opponents

Catherine CaouetteCurrently on ALMADEN SR CW7.5A
3.61
Elton LinCurrently on CUPERTINO TC/CUPERTINO SC CM7.5A
3.75
Mixed rating 2.91 → 2.84Doubles result

Jul 19, 2026 · Doubles · Mixed

Won 6-1,7-5
+0.22

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.36
Ryan Low(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC CM7.5C
4.24

Opponents

Jun QianCurrently on SUNNYVALE TC/SUNNYVALE MTC CM6.5A
3.68
Jing ShiCurrently on SUNNYVALE TC/SUNNYVALE MTC CW7.5A-DT
3.46
Mixed rating 2.68 → 2.91Doubles result

Jun 21, 2026 · Doubles · Mixed

Won 6-2,3-6,1-0
+0.15

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.36
Kumar Kandaswamy(partner)Currently on WALLENBERG PK CM7.5A
3.62

Opponents

Derek ChenCurrently on CUPERTINO TC/CUPERTINO SC CM7.5C
3.65
Molly NamCurrently on CUPERTINO TC/CUPERTINO SC CW6.5A
3.24
Mixed rating 2.53 → 2.68Doubles result

May 17, 2026 · Doubles · Combo

Lost 3-6,1-6
−0.02

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.86
Janet Arsenault(partner)Currently on SAN JOSE SR CW7.5A
3.04

Opponents

Michelle BlakeCurrently on FOOTHILLS TandS CW6.5A-DT
3.09
Abbie SerranoCurrently on MORGAN HILL TC/MORGAN HILL TC CW7.5A-DT
3.74
Combo rating 2.89 → 2.87Doubles result

May 16, 2026 · Doubles · Combo

Won 6-4,3-6,1-0
+0.14

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.86
Sheila Hutchinson(partner)Currently on SAN JOSE SR CW6.5A
3.12

Opponents

Sylvia ThompsonCurrently on SAN CARLOS TC/ARGUELLO PK CW6.5E
3.14
Dale LachtmanCurrently on ALPINE HILLS CW6.5A-DT
2.88
Combo rating 2.76 → 2.89Doubles result

May 15, 2026 · Doubles · Combo

Lost 0-6,4-6
−0.05

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.86
Claudia Parker(partner)Currently on LOS GATOS SR S70W7.0A
2.80

Opponents

Irene NishimotoCurrently on LOS GATOS SR S70W8.0A
3.16
Wendy KawamotoCurrently on CUPERTINO TC/CUPERTINO SC CW7.5A
3.08
Combo rating 2.81 → 2.76Doubles result

Apr 26, 2026 · Doubles · Combo

Lost 6-7,6-2,0-1
−0.03

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.86
Jeanne Oxford(partner)Currently on SANTA CLARA TC/SANTA CLARA TENNIS C 55MX7.0A
2.71

Opponents

Sylvia PetersonCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX6.0A
3.34
Wendy McdowellCurrently on SUNNYVALE TC/SUNNYVALE MTC CW6.5B-DT
3.13
Combo rating 2.84 → 2.81Doubles result

Apr 25, 2026 · Doubles · Combo

Won 6-0,6-1
+0.26

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.86
Lara Norman-Stowers(partner)Currently on SAN JOSE SR CW7.5A
3.51

Opponents

Lisa BaumertCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.33
Kristi ErpenbeckCurrently on LOS GATOS SR CW7.5B
3.49
Combo rating 2.58 → 2.84Doubles result

Apr 4, 2026 · Doubles · Combo

Lost 2-6,5-7
−0.03

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.86
Sheila Hutchinson(partner)Currently on SAN JOSE SR CW6.5A
3.12

Opponents

Amy Si DouCurrently on CUPERTINO TC/CUPERTINO SC CW6.5A
3.38
Kelly ChenCurrently on CUPERTINO TC/CUPERTINO SC CW6.5A
3.18
Combo rating 2.75 → 2.72Doubles result

Apr 4, 2026 · Doubles · Combo

Lost 3 RE-5
−0.08

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.86
Nancy Andersen(partner)Currently on SANTA CLARA TC/SANTA CLARA TENNIS C 55MX7.0A
2.77

Opponents

Mary Beth HueyCurrently on MOUNTAIN VIEW TC/RENGSTORFF PK CW6.5A-DT
2.93
Kim BespalyCurrently on SUNNYVALE MTC CW6.5E
3.02
Combo rating 2.72 → 2.64Doubles result

Mar 22, 2026 · Doubles · Combo

Lost 6-2,6-7,0-1
−0.03

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.86
Mary Jo Lee(partner)Currently on SAN JOSE SR CW7.5A
3.17

Opponents

Michelle DikeCurrently on SUNNYVALE MTC CW6.5C-DT
3.38
Sylvia PetersonCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX6.0A
3.34
Combo rating 2.78 → 2.75Doubles result

Mar 3, 2026 · Doubles

Lost 5-7,1-6
−0.03

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.81
Sheila Hutchinson(partner)Currently on SAN JOSE SR CW6.5A
2.69

Opponents

Youjin KimCurrently on SANTA CLARA TC/SANTA CLARA TENNIS C CW6.5A-DT
3.18
Hwayeon ParkCurrently on SUNNYVALE MTC CW7.5D-DT
3.36
Rating 2.79 → 2.76Doubles result

Jan 24, 2026 · Doubles

Lost 6-7,2-6
−0.07

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.81
Sheila Hutchinson(partner)Currently on SAN JOSE SR CW6.5A
2.69

Opponents

Chi BuckleyCurrently on SUNNYVALE TC/SUNNYVALE MTC CW6.5B-DT
3.14
Dinh VailCurrently on SUNNYVALE TC/SUNNYVALE MTC CW7.5B-DT
3.02
Rating 2.86 → 2.79Doubles result

Jan 18, 2026 · Doubles

Lost 0-6,0-6
−0.02

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.81
Amanda Ramos(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.69

Opponents

Lisa BaumertCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.25
Kerry LoftusCurrently on UNIVERSITY CLUB PA CW7.5A-DT
3.29
Rating 2.68 → 2.66Doubles result

Jan 12, 2026 · Doubles

Lost 2-6,1-6
−0.02

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.81
Lisa Baumert(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.25

Opponents

Viviane BahiaCurrently on SUNNYVALE MTC CW6.5C-DT
3.47
Mei LinCurrently on SUNNYVALE TC/SUNNYVALE MTC CW6.5A-DT
3.25
Rating 2.70 → 2.68Doubles result

Jan 10, 2026 · Singles

Lost 7-6,5-7,0-1
−0.13

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.81

Opponents

Sandra BallestrasseCurrently on MORGAN HILL TC/MORGAN HILL TC 55MX6.0A
2.91
Rating 2.83 → 2.70Singles result

Jan 8, 2026 · Doubles

Won 6-4,6-2
+0.25

Katharine’s side

Katharine HeintzCurrently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
2.81
Lisa Baumert(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC 55MX7.0A
3.25

Opponents

Elaine ChiuCurrently on SILVER CREEK CW6.5A-DT
3.04
Chris TomomatsuCurrently on FOSTER CITY TC/EDGEWATER PK S70W7.0A
3.48
Rating 2.58 → 2.83Doubles result

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

Best match
+0.22
Jul 19 vs J. Qian / J. Shi
Worst match
−0.10
Oct 7 vs H. Yu / T. Nhieu
▲
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 Nov 4
Year-end re-anchoring
Pulled toward the 2024 year-end level+0.002.79
Pulled toward the 2025 year-end level+0.032.58

More about Katharine

Katharine Heintz has been a USTA NorCal 3.0 since 2025. The estimated dynamic rating is 2.81, up 0.02 this season, with a 16–22 record in 2026 across regular, combo and mixed play. Most frequent partner: Kumar Kandaswamy, 3–3 in 6 matches together.

Record

16–22
2026 season, 38 matches
5–20
2025 season, 25 matches
2
Longest winning streak
5–6
Matches that went to a third set or match tiebreak

Partners

Best wins

Against the highest-rated opponents by year-end NTRP, this season and last.

Year-end NTRP, 2025–2026

3.0 from 2025 to 2026.

MatchPoint's estimated dynamic rating is an independent estimate from published USTA NorCal league results through November 4, 2026. It is not a rating USTA calculates, and MatchPoint is not affiliated with USTA.

Is this you, Katharine?

Track your rating after each match.

Who you played, their ratings and what it did to yours, plus each team's standings and playoff chances. Free. Pick your name once to start.

This is me

Captain a team?

Win more matches with less captain work.

Use ratings, availability, and opponent context to build better lineups—and get your time back.

Set up my team