Karen Forsthoff

NTRP rating 3.5C · 4 teams in 2026

Level

Desk level 3.10

The level is a Desk level as of the data run. It is The Tennis Desk's estimate of how the player is playing now, on the NTRP scale to two decimals. It is not an NTRP rating. The small chart beside the level is the rated lines in 2026.

Record

Year	Lines	Won-lost	Singles	Doubles
2026	11	6-5	—	6-5
2025	15	8-7	—	8-7
2024	12	1-11	—	1-11
2023	16	6-10	—	6-10
2022	11	2-9	—	2-9

League	Year	Won-lost
Adult 55 & Over Womens 7.0	2026	3-3
Adult 65 & Over Womens 7.0	2026	3-1
Combo Womens League 7.5	2026	0-1
Adult 40 & Over Womens 3.5	2025	3-2
Adult 55 & Over Womens 7.0	2025	3-1
Combo Womens Daytime League 7.5	2025	2-1
Combo Womens League 7.5	2025	0-3
Adult 40 & Over Womens 3.5	2024	1-1
Adult 55 & Over Womens 7.0	2024	0-3
Combo Womens Daytime League 7.5	2024	0-3
Combo Womens League 7.5	2024	0-4
Adult 40 & Over Womens 3.5	2023	2-2
Adult 55 & Over Womens 7.0	2023	2-1
Combo Womens League 7.5	2023	0-4
Mixed 55 & Over 7.0	2023	2-2
Mixed 55 & Over 8.0	2023	0-1
Adult 40 & Over Womens 4.0	2022	1-3
Adult 55 & Over Womens 8.0	2022	1-4
Combo Womens League 7.5	2022	0-2

Teams

2026

GLTF/SAN FRAN ST U · Combo Womens League 7.5 · NTRP rating 3.5C · roster record 0-1 in 1 line
TENNIS COALITION SF/GOLDMAN TC · Adult 55 & Over Womens 7.0 · NTRP rating 3.5C · roster record 3-3 in 6 lines
TENNIS COALITION SF/GOLDMAN TC · Adult 65 & Over Womens 7.0 · NTRP rating 3.5C · roster record 3-1 in 4 lines
TENNIS COALITION SF/GOLDMAN TC · Combo Womens Daytime League 7.5 · NTRP rating 3.5C · no line yet

2025

TENNIS COALITION SF/GOLDMAN TC · Adult 40 & Over Womens 3.5 · NTRP rating 3.5C · roster record 3-2 in 5 lines
TENNIS COALITION SF/GOLDMAN TC · Adult 55 & Over Womens 7.0 · NTRP rating 3.5C · roster record 3-1 in 4 lines
TENNIS COALITION SF/GOLDMAN TC · Combo Womens Daytime League 7.5 · NTRP rating 3.5C · roster record 2-1 in 3 lines
TENNIS COALITION SF/GOLDMAN TC · Combo Womens League 7.5 · NTRP rating 3.5C · roster record 0-3 in 3 lines

2024

TENNIS COALITION SF/GOLDMAN TC · Adult 40 & Over Womens 3.5 · NTRP rating 3.5C · roster record 1-1 in 3 lines
TENNIS COALITION SF/GOLDMAN TC · Adult 55 & Over Womens 7.0 · NTRP rating 3.5C · roster record 0-3 in 3 lines
TENNIS COALITION SF/GOLDMAN TC · Combo Womens Daytime League 7.5 · NTRP rating 3.5C · roster record 0-3 in 3 lines
TENNIS COALITION SF/GOLDMAN TC · Combo Womens League 7.5 · NTRP rating 3.5C · roster record 0-4 in 4 lines

2023

GOLDEN GATE TC/GOLDMAN TC · Adult 40 & Over Womens 3.5 · NTRP rating 3.5C · roster record 2-2 in 4 lines
GOLDMAN TC · Combo Womens League 7.5 · NTRP rating 3.5C · roster record 0-4 in 4 lines
TENNIS COALITION SF/GOLDMAN TC · Adult 55 & Over Womens 7.0 · NTRP rating 3.5C · roster record 2-1 in 3 lines
TENNIS COALITION SF/GOLDMAN TC · Mixed 55 & Over 7.0 · NTRP rating 3.5C · roster record 2-2 in 4 lines
TENNIS COALITION SF/GOLDMAN TC · Mixed 55 & Over 8.0 · NTRP rating 3.5C · roster record 0-1 in 1 line

2022

GOLDMAN TC · Adult 40 & Over Womens 4.0 · NTRP rating 4.0C · roster record 1-3 in 5 lines
GOLDMAN TC · Adult 55 & Over Womens 8.0 · NTRP rating 4.0C · roster record 1-4 in 5 lines
GOLDMAN TC · Combo Womens League 7.5 · NTRP rating 4.0C · roster record 0-2 in 2 lines

Match log

Team match	Partner	Opponents
August 29, 2026 · Doubles 1L6-3, 6-1
GLTF/SAN FRAN ST U v BAY CLUB SF TENNIS Combo Womens League 7.5	Janis Porto	Anthea Pang, Jennifer Yang
May 16, 2026 · Doubles 1W6-0, 6-4
TENNIS COALITION SF/GOLDMAN TC v BAY CLUB REDWOOD SHORES Adult 55 & Over Womens 7.0	Midori Tanaka Atkins	Pamela Bohlmann, Mai Tran
May 13, 2026 · Doubles 1L6-4, 6-2
TENNIS COALITION SF/GOLDMAN TC v FOSTER CITY TC/EDGEWATER PK Adult 55 & Over Womens 7.0	Amy Jang	Mariko Kimura, Junko Tanaka
April 25, 2026 · Doubles 2W6-1, 6-1
TENNIS COALITION SF/GOLDMAN TC v GLTF/SAN FRAN ST U Adult 55 & Over Womens 7.0	Midori Tanaka Atkins	Amy Morikami, Sonal Patel
April 23, 2026 · Doubles 2 · PlayoffsL3-6, 6-4, 1-0
MARIN TC v TENNIS COALITION SF/GOLDMAN TC Adult 65 & Over Womens 7.0	Meyla Ruwin	Lisa Cascio, Louise Loeber
April 23, 2026 · Doubles 1L6-0, 6-0
FOSTER CITY TC/EDGEWATER PK v TENNIS COALITION SF/GOLDMAN TC Adult 55 & Over Womens 7.0	Lois Anne Indorf	Laura Fanucchi, Stephanie Finley
April 18, 2026 · Doubles 1L6-4, 5-7, 1-0
SAN CARLOS TC/ARGUELLO PK v TENNIS COALITION SF/GOLDMAN TC Adult 55 & Over Womens 7.0	Daphne Zenk	Lisa Dunlevie, Ieda Garcia
April 7, 2026 · Doubles 1W6-4, 6-2
TENNIS COALITION SF/GOLDMAN TC v MT TAM RC Adult 65 & Over Womens 7.0	Meyla Ruwin	Xiao Liu, Kristine Lienhart
March 28, 2026 · Doubles 1W0-6, 6-4, 1-0
TENNIS COALITION SF/GOLDMAN TC v SAN CARLOS TC/ARGUELLO PK Adult 55 & Over Womens 7.0	Pearl Villena	Diane Martin, Serene Lai
March 23, 2026 · Doubles 1W6-4, 6-3
MT TAM RC v TENNIS COALITION SF/GOLDMAN TC Adult 65 & Over Womens 7.0	Meyla Ruwin	Kay Fields, Kathleen Walsh
February 9, 2026 · Doubles 3W7-5, 6-2
MT TAM RC v TENNIS COALITION SF/GOLDMAN TC Adult 65 & Over Womens 7.0	Janet Broude	Sue Pearlstein, Vicki Trent
January 13, 2026 · Doubles 3 · SectionalsW6-2, 6-3
TENNIS COALITION SF/GOLDMAN TC v BAY CLUB COURTSIDE Combo Womens Daytime League 7.5	Paula Mangin	Diane Hudson, Janice Passarello
October 10, 2025 · Doubles 3W6-4, 6-3
BAY CLUB SF TENNIS v TENNIS COALITION SF/GOLDMAN TC Combo Womens Daytime League 7.5	Martha Ehrenfeld	Becky Packard, Joyce Noah-Vanhoucke
September 22, 2025 · Doubles 3L6-2, 6-2
TENNIS COALITION SF/GOLDMAN TC v GOLDMAN TC Combo Womens League 7.5	Adrienne Ladd	Emily Steinglass, Christine Yeh
September 16, 2025 · Doubles 2L6-3, 2-6, 1-0
TENNIS COALITION SF/GOLDMAN TC v BAY CLUB SF TENNIS Combo Womens Daytime League 7.5	Natalie Batlin	Ria Mendoza, Joyce Noah-Vanhoucke
September 13, 2025 · Doubles 2L6-2, 6-3
TENNIS COALITION SF/GOLDMAN TC v CALIFORNIA TC Combo Womens League 7.5	Lilian Kim	Katrina Jessoe, Andrea Barrett
September 6, 2025 · Doubles 3L6-4, 6-2
GOLDEN GATEWY v TENNIS COALITION SF/GOLDMAN TC Combo Womens League 7.5	Janet Arnesty	Jackie Keelan, Heather Weyand
April 19, 2025 · Doubles 2W6-0, 6-3
TENNIS COALITION SF/GOLDMAN TC v BAY CLUB REDWOOD SHORES Adult 55 & Over Womens 7.0	Maimi Hom	Lisa Cortopassi, Laura Lindow
April 13, 2025 · Doubles 2 · PlayoffsW7-6, 3-6, 1-0
TENNIS COALITION SF/GOLDMAN TC v GLTF/GOLDMAN TC Adult 40 & Over Womens 3.5	Mary Anne Ruyle	Kayla Kemner, Michelle Philpot
April 7, 2025 · Doubles 3W6-1, 6-1
FOSTER CITY TC/EDGEWATER PK v TENNIS COALITION SF/GOLDMAN TC Adult 55 & Over Womens 7.0	Vicky Perez	Barbara Koo, Carmen Flores
March 29, 2025 · Doubles 1L7-6, 6-0
SAN CARLOS TC/ARGUELLO PK v TENNIS COALITION SF/GOLDMAN TC Adult 55 & Over Womens 7.0	Eun Young Lee	Molly Underwood, Debbie Schechter
March 22, 2025 · Doubles 3W6-2, 6-0
TENNIS COALITION SF/GOLDMAN TC v GOLDMAN TC Adult 55 & Over Womens 7.0	Maimi Hom	Linda Zellerbach, Wenonah Devens
March 14, 2025 · Doubles 3L2-6, 6-4, 1-0
TENNIS COALITION SF/GOLDMAN TC v SAN FRAN ST U Adult 40 & Over Womens 3.5	Lois Anne Indorf	Anny Hong, Jessica Pfannenstiel
March 8, 2025 · Doubles 3W5-7, 7-6, 1-0
YMCA PRESIDIO v TENNIS COALITION SF/GOLDMAN TC Adult 40 & Over Womens 3.5	Mimi Wong	Sonal Patel, Molly Shiels
January 27, 2025 · Doubles 2L1-6, 6-3, 1-0
TENNIS COALITION SF/GOLDMAN TC v GLTF/GOLDMAN TC Adult 40 & Over Womens 3.5	Priya Shete	Jenny Huynh, Sheila Rivera
January 13, 2025 · Doubles 3W7-6, 6-3
TENNIS COALITION SF/GOLDMAN TC v YMCA PRESIDIO Adult 40 & Over Womens 3.5	Lois Anne Indorf	Megan Myers, Molly Shiels
November 1, 2024 · Doubles 1L6-1, 6-2
SCOTT VALLEY v TENNIS COALITION SF/GOLDMAN TC Combo Womens Daytime League 7.5	Cherub Halperin	Laura Spence, Lorna Rushforth
October 30, 2024 · Doubles 2L6-2, 6-2
OLYMPIC v TENNIS COALITION SF/GOLDMAN TC Combo Womens League 7.5	Lynette Ferrer	Rebecca Belding, Shan Bai
October 20, 2024 · Doubles 3L6-3, 2-6, 1-0
TENNIS COALITION SF/GOLDMAN TC v CALIFORNIA TC Combo Womens League 7.5	Jacinta Mccann	Lara Witter, Lizanne Suter
October 18, 2024 · Doubles 1L7-5, 6-2
TIBURON PEN C v TENNIS COALITION SF/GOLDMAN TC Combo Womens Daytime League 7.5	Sally Brien	Pamela Bohner, Syd Westley
September 29, 2024 · Doubles 3L6-7, 6-2, 1-0
TENNIS COALITION SF/GOLDMAN TC CW7.5A v TENNIS COALITION SF/GOLDMAN TC CW7.5C Combo Womens League 7.5	Vesa Becam	Catherine Hudson, Nina Kim
September 15, 2024 · Doubles 1L6-3, 7-6
TENNIS COALITION SF/GOLDMAN TC v OLYMPIC Combo Womens League 7.5	Lisa Laanisto	Blair Evans, Rebecca Belding
September 10, 2024 · Doubles 2L6-4, 6-2
TENNIS COALITION SF/GOLDMAN TC v TIBURON PEN C Combo Womens Daytime League 7.5	Janis Porto	Stacy Achuck, Syd Westley
May 12, 2024 · Doubles 1L7-6, 7-6
TENNIS COALITION SF/GOLDMAN TC v FOSTER CITY TC/EDGEWATER PK Adult 55 & Over Womens 7.0	Ruthanne Tatum	Charlene Wing Wo, Molly Underwood
May 11, 2024 · Doubles 3L6-4, 2-6, 1-0
TENNIS COALITION SF/GOLDMAN TC v SAN CARLOS TC/ARGUELLO PK Adult 55 & Over Womens 7.0	Lois Anne Indorf	Laurel Dawson, Jennifer Doniach
April 27, 2024 · Doubles 2L6-2, 6-2
MILLBRAE RC v TENNIS COALITION SF/GOLDMAN TC Adult 55 & Over Womens 7.0	Shan Lu	Cindy Dunleavy, Sonia Santiago
February 24, 2024 · Doubles 3W6-1, 6-1
TENNIS COALITION SF/GOLDMAN TC v YMCA PRESIDIO Adult 40 & Over Womens 3.5	Lois Anne Indorf	Sarah Howard, Holly Myers
January 8, 2024 · Doubles 2L6-2, 6-3
TENNIS COALITION SF/GOLDMAN TC v CALIFORNIA TC Adult 40 & Over Womens 3.5	Nina Kim	Daisy Downs, Olivia Morgan
October 21, 2023 · Doubles 1L6-4, 4-6, 1-0
GOLDMAN TC v CALIFORNIA TC Combo Womens League 7.5	Martha Ehrenfeld	Ellen Cowan, Linda Geballe
October 15, 2023 · Doubles 1L6-3, 6-4
GOLDMAN TC v BAY CLUB SF TENNIS Combo Womens League 7.5	Janis Porto	Claudia Vlasak, Christina Tse
October 7, 2023 · Doubles 1L6-3, 6-4
MT TAM RC v TENNIS COALITION SF/GOLDMAN TC Mixed 55 & Over 7.0	Eric Rasmussen	Nina Trowbridge, Ramesh Mavelikalam
September 30, 2023 · Doubles 3L7-6, 6-2
GOLDMAN TC CW7.5A v GOLDMAN TC CW7.5B Combo Womens League 7.5	Janet Arnesty	La Phengrasamy, Bernice Zhu
September 24, 2023 · Doubles 3L6-2, 6-2
TENNIS COALITION SF/GOLDMAN TC v MT TAM RC Mixed 55 & Over 7.0	Morris Levin	Jennifer Sterne, Mark Brennan
September 23, 2023 · Doubles 3L6-2, 6-3
FOSTER CITY TC/EDGEWATER PK v TENNIS COALITION SF/GOLDMAN TC Mixed 55 & Over 8.0	Jonathan Feldman	Betty Lee, Byron Lee
September 17, 2023 · Doubles 1W6-3, 6-4
BOYLE PK v TENNIS COALITION SF/GOLDMAN TC Mixed 55 & Over 7.0	John Good	Marc Sarosi, Lisa Taft
September 16, 2023 · Doubles 1L6-2, 6-2
GOLDMAN TC v OLYMPIC Combo Womens League 7.5	Janet Arnesty	Catherine Fogelman, Julie Christy
September 10, 2023 · Doubles 1W6-4, 6-1
TENNIS COALITION SF/GOLDMAN TC v MARIN TC Mixed 55 & Over 7.0	Brent McDonald	Katie Magnuson, Elliott Magnuson
May 27, 2023 · Doubles 2W6-1, 6-4
MARIN YACHT v TENNIS COALITION SF/GOLDMAN TC Adult 55 & Over Womens 7.0	Marietta Nunez	Sandy Geller, Kay Fields
May 6, 2023 · Doubles 2W6-0, 6-2
TENNIS COALITION SF/GOLDMAN TC v BELVEDERE TC Adult 55 & Over Womens 7.0	Vicky Perez	Mary Hayden-Pang, Lizi Cruz
April 15, 2023 · Doubles 1L1-6, 6-2, 1-0
BELVEDERE TC v TENNIS COALITION SF/GOLDMAN TC Adult 55 & Over Womens 7.0	Maimi Hom	Jennifer Hocking, Connie Oclassen
March 18, 2023 · Doubles 1L6-2, 1-6, 1-0
GOLDEN GATE TC/GOLDMAN TC v BAY CLUB SF TENNIS Adult 40 & Over Womens 3.5	Lois Anne Indorf	Terry Romero, Sherri Glenn
March 12, 2023 · Doubles 1L6-4, 6-2
GOLDEN GATEWY v GOLDEN GATE TC/GOLDMAN TC Adult 40 & Over Womens 3.5	Lois Anne Indorf	Leilani Latimer, Amelia Morris
March 5, 2023 · Doubles 1W5-7, 6-4, 1-0
GLTF/GOLDMAN TC v GOLDEN GATE TC/GOLDMAN TC Adult 40 & Over Womens 3.5	Vicky Perez	Daphne Zenk, Amy Clifford
March 3, 2023 · Doubles 2W7-5, 6-7, 1-0
GOLDEN GATE TC/GOLDMAN TC v GOLDEN GATEWY Adult 40 & Over Womens 3.5	Lois Anne Indorf	Leslie Brell, Jackie Keelan
October 8, 2022 · Doubles 3L3-6, 6-3, 1-0
GOLDMAN TC v BAY CLUB SF TENNIS Combo Womens League 7.5	Karen Brandman	Belle Guzman, April Menes
September 25, 2022 · Doubles 3L6-4, 7-6
GOLDMAN TC v OLYMPIC Combo Womens League 7.5	Vicky Perez	Catherine Fogelman, Lindsay Krueger
May 29, 2022 · Doubles 2L6-4, 6-3
GOLDMAN TC v MT TAM RC Adult 55 & Over Womens 8.0	Catherine Hudson	Kristin Klein, Colleen Bertiglia
May 22, 2022 · Doubles 1L6-4, 6-1
MARIN TC v GOLDMAN TC Adult 55 & Over Womens 8.0	Claire Hunter	DUPLICATESue DUPLICATEHook, Suzanne Seavey
May 15, 2022 · Doubles 3W6-2, 1-6, 1-0
HARBOR PT v GOLDMAN TC Adult 55 & Over Womens 8.0	Catherine Hudson	Vesa Becam, Daru Kawalkowski
May 8, 2022 · Doubles 2L6-4, 4-6, 1-0
GOLDMAN TC v MT TAM RC Adult 55 & Over Womens 8.0	Heidi Young	Mika Suzuki, Jennifer Schwartz
April 24, 2022 · Doubles 1L6-3, 6-1
GOLDMAN TC v HARBOR PT Adult 55 & Over Womens 8.0	Claudia Vlasak	Candace Davenport, Mary Carse
April 23, 2022 · Doubles 3 · SectionalsL6-4, 6-3
MARIN TC v GOLDMAN TC Adult 40 & Over Womens 4.0	Tamara York	Tina Skouras, Christina Wang
March 3, 2022 · Doubles 3L6-1, 4-6, 1-0
BAY CLUB SF TENNIS v GOLDMAN TC Adult 40 & Over Womens 4.0	Amy Kleckner	Jennifer Lai, Paula Mangin
February 13, 2022 · Doubles 3L6-4, 4-6, 1-0
GOLDEN GATEWY v GOLDMAN TC Adult 40 & Over Womens 4.0	Anne Kavanagh	Kristen Steck, Cynthia Wang
January 29, 2022 · Doubles 2W6-2, 6-2
GOLDMAN TC v GLTF/GOLDMAN TC Adult 40 & Over Womens 4.0	Martha Ehrenfeld	Suzanne Nick, Mimi Wong

Partners

Lois Anne Indorf · 8 doubles lines together, 3-5
Vicky Perez · 4 doubles lines together, 3-1
Martha Ehrenfeld · 3 doubles lines together, 2-1
Maimi Hom · 3 doubles lines together, 2-1
Meyla Ruwin · 3 doubles lines together, 2-1
Janet Arnesty · 3 doubles lines together, 0-3
Janis Porto · 3 doubles lines together, 0-3