Ko-yun Chen · NorCal tennis rating

MatchPoint

Player profile

Ko-yun Chen

USTA 3.0 · NorCal league player

2.91

current

▲ +0.62 this season

Other formats · don’t affect your rating above

Combo 3.28Mixed 3.38

Active teams

BRAMHALL PK CW7.5A →2026 Combo Womens League 7.5

USTA3.00

2026

30 matches

Apr · 2.27

Aug · 2.91

Sep 10 · Doubles−0.12

L R. Sidartawan-lie / J. Anderson

4-6,1-6 · 2D · with Yan Yin

● 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

30 matches

Published NorCal results in 2026 — 13 scoring, 17 combo or mixed. Combo and mixed don’t affect NTRP ratings.

Sep 10, 2026 · Doubles · 2D · Combo

Lost 4-6,1-6

−0.12

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.28

Yan Yin(partner)Currently on SUNNYVALE MTC CW5.5A

3.13

Opponents

Rini Sidartawan-lieCurrently on ALMADEN SR CW7.5A

3.42

Jill AndersonCurrently on ALMADEN SR CW7.5A

3.35

Combo rating 3.39 → 3.28Doubles result

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

Aug 8, 2026 · Doubles

Won 6-2,6-2

+0.21

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

2.91

Yeping Hu(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC CW6.5C

3.18

Opponents

Ashley HellyerCurrently on RAFAEL RC CW7.5A

3.28

Brianna ThomsenCurrently on WIKIUP R SC CW6.5A

3.02

Rating 2.75 → 2.96Doubles result

Aug 8, 2026 · Doubles

Lost 0-6,6-2,0-1

−0.05

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

2.91

Shan Sun(partner)Currently on SUNNYVALE MTC CW6.5B

3.10

Opponents

Jennie MccashinCurrently on ORINDA CC CW7.5A

3.08

Monica BrunCurrently on SLEEPY HOLLOW CW6.5A-DT

3.52

Rating 2.96 → 2.91Doubles result

Aug 7, 2026 · Doubles

Lost 5-7,6-7

−0.00

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

2.91

Shan Sun(partner)Currently on SUNNYVALE MTC CW6.5B

3.10

Opponents

Suratwadee LakornwongCurrently on FOSTER CITY TC/EDGEWATER PK CW7.5A-DT

3.85

Cef Ella

3.66

Rating 2.76 → 2.75Doubles result

Jun 27, 2026 · Doubles

Won 6-0,6-0

+0.10

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

2.91

Alexandra Koseva(partner)Currently on SUNNYVALE MTC CW6.5C-DT

2.84

Opponents

Carol MuhnCurrently on MORGAN HILL TC/MORGAN HILL TC CW5.5A-DT

2.82

Grace PresaCurrently on MORGAN HILL TC/MORGAN HILL TC CW5.5A-DT

2.70

Rating 2.65 → 2.76Doubles result

Jun 14, 2026 · Singles

Lost 3-6,4-6

−0.22

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

2.91

Opponents

Megan PacumioCurrently on SILVER CREEK CW6.5A-DT

2.83

Rating 2.87 → 2.65Singles result

Jun 12, 2026 · Doubles

Won 7-6,6-2

+0.22

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

2.91

Runa Koizumi(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC CW6.5A-DT

3.79

Opponents

Sonia WhitfieldCurrently on BAY CLUB COURTSIDE CW7.5A

3.25

Stacie PittengerCurrently on SILVER CREEK CW7.5A

3.30

Rating 2.65 → 2.87Doubles result

Jun 7, 2026 · Doubles

Won 3-2 RE

+0.07

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

2.91

Alexandra Koseva(partner)Currently on SUNNYVALE MTC CW6.5C-DT

2.84

Opponents

Manqin ZhongCurrently on SUNNYVALE MTC CW5.5A

2.57

Jingyi MuCurrently on SUNNYVALE MTC CW5.5A

2.62

Rating 2.36 → 2.43Doubles result

Jun 7, 2026 · Doubles

Won 6-0,6-0

+0.22

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

2.91

You Li(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC CW6.5C

3.05

Opponents

Ivy LingCurrently on SUNNYVALE MTC CW6.5B

3.05

Nanxi LiCurrently on SUNNYVALE MTC CW6.5B

3.12

Rating 2.43 → 2.65Doubles result

May 24, 2026 · Singles

Won 6-2,6-1

+0.11

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

2.91

Opponents

Shiyun WangCurrently on BAY CLUB SANTA CLARA CW5.5A

2.55

Rating 2.25 → 2.36Singles result

May 17, 2026 · Doubles

Lost 1-6,3-6

−0.06

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

2.91

Shan Sun(partner)Currently on SUNNYVALE MTC CW6.5B

3.10

Opponents

Shanshan ChenCurrently on SUNNYVALE MTC CW6.5D

3.14

Zhen LiuCurrently on SUNNYVALE MTC CW6.5D

3.16

Rating 2.31 → 2.25Doubles result

May 6, 2026 · Doubles

Lost 5-7,3-6

−0.02

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

2.91

Zixiao Cheng(partner)Currently on SUNNYVALE MTC CW7.5B

3.58

Opponents

Jennifer HaggertyCurrently on SUNNYVALE TC/SUNNYVALE MTC CW6.5C

3.32

Kristi ErpenbeckCurrently on LOS GATOS SR CW7.5B

3.25

Rating 2.33 → 2.31Doubles result

Apr 17, 2026 · Doubles

Lost 5-7,1-6

−0.03

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

2.91

Shan Sun(partner)Currently on SUNNYVALE MTC CW6.5B

3.10

Opponents

Xinyi LiuCurrently on SUNNYVALE MTC CW5.5A

3.15

Yuling LiuCurrently on CUESTA TC CW6.5A

3.36

Rating 2.36 → 2.33Doubles result

Apr 6, 2026 · Doubles

Won 6-3,6-0

+0.09

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

2.91

Frances Wu(partner)Currently on SUNNYVALE MTC CW5.5A

2.70

Opponents

Paulina LowCurrently on BAY CLUB SANTA CLARA CW5.5A

2.24

Leticia Lafosse

2.73

Rating 2.27 → 2.36Doubles result

Apr 3, 2026 · Doubles · Mixed

Lost 6-3,2-6,0-1

−0.03

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.38

Sikai Huang(partner)Currently on SUNNYVALE MTC CM8.5A

3.98

Opponents

Eva WuCurrently on SUNNYVALE MTC CW6.5B

3.79

Ming TaCurrently on SUNNYVALE MTC 40MX7.0F

4.11

Mixed rating 3.42 → 3.38Doubles result

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

Mar 27, 2026 · Doubles · Mixed

Won 6-2,7-6

+0.17

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.38

Sikai Huang(partner)Currently on SUNNYVALE MTC CM8.5A

3.98

Opponents

Ryan LowCurrently on SUNNYVALE TC/SUNNYVALE MTC CM7.5C

4.24

Paulina LowCurrently on BAY CLUB SANTA CLARA CW5.5A

3.23

Mixed rating 3.25 → 3.42Doubles result

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

Mar 1, 2026 · Doubles · Mixed

Lost 2-6,0-6

−0.09

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.38

Paul Chen(partner)Currently on SUNNYVALE MTC CM8.5B

3.86

Opponents

Sanjiv PandeyCurrently on PLEASANTON CM7.5C

3.86

Madeleine ClarkCurrently on GOLDMAN TC CW7.5B

3.53

Mixed rating 3.34 → 3.25Doubles result

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

Feb 28, 2026 · Doubles · Mixed

Won 6-1,2-6,1-0

+0.02

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.38

Chen Wang(partner)Currently on SUNNYVALE TC/SUNNYVALE MTC CM6.5A

3.61

Opponents

Chao ZhouCurrently on SAN CARLOS TC/ARGUELLO PK CM6.5B

2.98

Xiaoxiang WangCurrently on SANTA CLARA TC/SANTA CLARA TENNIS C CW5.5A

3.12

Mixed rating 3.32 → 3.34Doubles result

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

Feb 22, 2026 · Doubles · Mixed

Won 6-3,6-1

+0.02

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.38

Haoting Chen(partner)

3.24

Opponents

Khalid BegCurrently on SUNNYVALE TC/SUNNYVALE MTC CM6.5D

2.98

Mathangi VenkatesanCurrently on SUNNYVALE MTC CW6.5A

2.89

Mixed rating 3.29 → 3.32Doubles result

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

Feb 19, 2026 · Doubles · Mixed

Lost 0-6,3-6

−0.11

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.38

Mark Alves(partner)Currently on SHELDON PK CM8.5A

3.64

Opponents

Richard ZhaoCurrently on SAN CARLOS TC/ARGUELLO PK CM6.5B

3.53

Ashley ChangCurrently on FOSTER CITY TC/EDGEWATER PK CW7.5A

3.87

Mixed rating 3.41 → 3.29Doubles result

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

Feb 8, 2026 · Doubles · Mixed

Won 7-5,7-6

+0.18

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.38

Joseph Huang(partner)Currently on RINCONADA PK CM8.5B

4.33

Opponents

Brett Anthony ForemanCurrently on SAN JOSE SR 40MX7.0A

4.05

Michelle AngelCurrently on BAY CLUB SANTA CLARA 40MX7.0B

3.54

Mixed rating 3.23 → 3.41Doubles result

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

Feb 7, 2026 · Doubles · Mixed

Won 7-6,6-3

+0.19

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.38

Sikai Huang(partner)Currently on SUNNYVALE MTC CM8.5A

3.98

Opponents

Brian DengCurrently on SUNNYVALE MTC CM7.5D

3.60

Chang GengCurrently on SUNNYVALE MTC CW7.5B

3.60

Mixed rating 3.04 → 3.23Doubles result

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

Jan 31, 2026 · Doubles · Mixed

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

+0.19

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.38

Sikai Huang(partner)Currently on SUNNYVALE MTC CM8.5A

3.98

Opponents

Joe LiebeschuetzCurrently on BAY CLUB SANTA CLARA 55MX8.0A

3.83

Karen SchuttenCurrently on SAN CARLOS TC/ARGUELLO PK 40MX7.0B

3.73

Mixed rating 2.85 → 3.04Doubles result

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

Jan 24, 2026 · Doubles · Combo

Won 6-1,6-3

+0.07

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.28

Elaine Zhao(partner)Currently on SUNNYVALE MTC CW7.5B

3.73

Opponents

Emily SimoneCurrently on OLYMPIC CW7.5A

3.28

Hannah ShabbCurrently on OLYMPIC CW6.5A

2.79

Combo rating 3.32 → 3.39Doubles result

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

Jan 23, 2026 · Doubles · Combo

Lost 2-6,4-6

−0.07

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.28

Shan Sun(partner)Currently on SUNNYVALE MTC CW6.5B

3.40

Opponents

Kristi SandersCurrently on NAPA VALLEY TC/VINTAGE HS CW6.5A

3.37

Christine MalloyCurrently on NAPA VALLEY TC/VINTAGE HS CW6.5B

3.75

Combo rating 3.24 → 3.16Doubles result

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

Jan 23, 2026 · Doubles · Combo

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

+0.16

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.28

Chang Geng(partner)Currently on SUNNYVALE MTC CW7.5B

3.50

Opponents

Qimin Cao

3.40

Weiwei LuanCurrently on BAY CLUB SANTA CLARA CW7.5A

3.57

Combo rating 3.16 → 3.32Doubles result

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

Jan 19, 2026 · Doubles · Mixed

Won 6-2,6-3

+0.07

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.38

Wenxin He(partner)Currently on RINCONADA PK CM8.5A

3.61

Opponents

Lisa MckennaCurrently on SAN CARLOS TC/ARGUELLO PK 55MX7.0C

2.93

John WynnCurrently on SUNNYVALE TC/SUNNYVALE MTC S70M7.0B

3.14

Mixed rating 2.78 → 2.85Doubles result

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

Jan 18, 2026 · Doubles · Mixed

Lost 6-2,4-6,0-1

−0.04

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.38

Joe Lee(partner)Currently on LOS PASEOS PK CM8.5A

3.96

Opponents

Michael ZhangCurrently on SUNNYVALE MTC 40MX7.0A

3.65

Dan SuCurrently on SUNNYVALE MTC CW8.5E

3.76

Mixed rating 2.82 → 2.78Doubles result

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

Jan 16, 2026 · Doubles · Mixed

Won 6-2,6-2

+0.17

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.38

Sikai Huang(partner)Currently on SUNNYVALE MTC CM8.5A

3.98

Opponents

Mei SeeCurrently on SANTA CLARA TC/SANTA CLARA TENNIS C 55MX7.0A

3.12

Sean ArnoldCurrently on SANTA CLARA TC/SANTA CLARA TENNIS C 40MX8.0A

3.64

Mixed rating 2.65 → 2.82Doubles result

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

Jan 11, 2026 · Doubles · Mixed

Lost 2-6,1-6

−0.14

Ko-yun’s side

Ko-yun ChenCurrently on BRAMHALL PK CW7.5A

3.38

Jo Zhang(partner)Currently on RINCONADA PK CM7.5A

3.34

Opponents

Ning Li

3.44

Haiting DiaoCurrently on SUNNYVALE MTC CW6.5E

3.38

Mixed rating 2.79 → 2.65Doubles result

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

Best match

+0.22

Jun 12 vs S. Whitfield / S. Pittenger

Worst match

−0.22

Jun 14 vs Megan Pacumio

▲

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

Ko-yun Chen’s MatchPoint NorCal tennis rating is 2.91, an independent estimate based on published NorCal league results through September 20, 2026. They are currently rostered on BRAMHALL PK CW7.5A.

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−0.212.08

Pulled toward the 2025 year-end level−0.012.27

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

Ko-yun Chen’s NorCal tennis rating

Win more matches with less captain work.