Kobayashi, Kaori

USTA ID

2003936509

Gender

Female

Location

Palatine, IL

WTN ID

KOB4977081

TennisLink · USTA · WTN

Active Flights

40 & Over W 4.0 Winter

FV (Hayashida)

NTRP Ratings

Rating	Type	Year	Date	Expires
4.0	C	2025	Dec. 31, 2025	Dec. 31, 2028

WTN Ratings

Singles

30.12

Confidence 10 · 28.3–32.0

Doubles

29.00

Confidence 70 · 27.3–30.7

Position Distribution

Mixed Doubles 8.0

14 matches

1# Doubles

5 (36%)

2# Doubles

6 (43%)

3# Doubles

3 (21%)

Women's Combo 4.0

23 matches

1# Doubles

4 (17%)

2# Doubles

12 (52%)

3# Doubles

7 (30%)

Women's Doubles 4.0

2 matches

2 (100%)

Women's Doubles 8.0

17 matches

1# Doubles

3 (18%)

2# Doubles

8 (47%)

3# Doubles

6 (35%)

Partners

Partner	W	L	xW	Together
Deborah Sonoda	1	6	2.4	7
Patricia Behnke	4	1	2.1	5
Nancy Maska	3	2	1.9	5
Mya Murata	3	2	2.7	5
Tomoko Hayashida	1	3	1.3	4
Yoichi Sumida	1	3	2.0	4
Michiko Nakagawa	1	2	1.6	3
Venkat Tipirneni	0	2	0.4	2
Andrew Meyer	0	2	0.3	2
Toshio Sato	1	1	1.0	2
Raquel Karpinski	0	2	0.6	2
Ann Wiet	0	2	0.6	2
Tara Brix	0	1	0.2	1
Yumi Ida	0	1	0.2	1
Beth Salomao	0	1	0.2	1
Miriam Abe	1	0	0.4	1
Yasukazu Nagatake	0	1	0.2	1
Yoshitaka Nakahara	0	1	0.2	1
Stephanie Batka	1	0	0.4	1
Hideaki Takahashi	0	1	0.1	1
William Crain	1	0	0.5	1
Agnieszka Filipek	0	1	0.2	1
Jan MacK	0	1	0.6	1

Opponents

Opponent	W	L	xW	Faced
Sophia Koliatsis	2	1	0.8	3
Sheryl Martin	3	0	2.1	3
Jean Soh	0	2	0.2	2
Beth Immen	0	2	0.5	2
Rochelle Meng	2	0	0.8	2
Maria Lobo-Corey	0	2	0.8	2
Masako Ueda	0	2	0.3	2
Julie Sujack	1	1	0.8	2
Lucie Kreidler	0	1	0.4	1
Kristen Lay	0	1	0.4	1
Leigh Keyser	0	1	0.2	1
Patricia Nelson	0	1	0.2	1
Marilyn Tansey	0	1	0.3	1
Stephanie Thompson	0	1	0.3	1
Narissa Breger	0	1	0.6	1
Lisa Potash	0	1	0.6	1
Stacy Burgoon	1	0	0.7	1
Rosa Broseman	1	0	0.7	1
Jill Buckley	1	0	0.6	1
Elizabeth Opie	1	0	0.6	1
Kelly Golden	0	1	0.4	1
Stefanie Turner	0	1	0.4	1
Julie Miller	0	1	0.2	1
Johanna Raimond	0	1	0.2	1
Karen Light	0	1	0.2	1
Stacey Tomczak	0	1	0.2	1
Amy Antoniolli	0	1	0.6	1
Heather Hayden	0	1	0.6	1
Sarah Korreck	0	1	0.2	1
Urszula Farry	0	1	0.2	1
Kathleen McLaughlin	1	0	0.6	1
Kelly Carroll	1	0	0.6	1
Joanne Lund	1	0	0.5	1
Alja Hessami-Maas	1	0	0.5	1
Silvia Kusaka	0	1	0.1	1
Denise M Bosco	1	0	0.5	1
Sue Ludwig	1	0	0.5	1
Susan Klawitter	0	1	0.4	1
Erica Eisner	1	0	0.4	1
Zagorka James	1	0	0.4	1
Haina Shin	1	0	0.3	1
Peter Shields	0	1	0.1	1
Elleson Song	0	1	0.1	1
Marjorie Baltazar	1	0	0.1	1
Derek Jones	0	1	0.2	1
Michelle Perry	0	1	0.2	1
Thomas Gilbertson	0	1	0.2	1
Farrah Zick	0	1	0.2	1
Carlos Alcantar	0	1	0.0	1
Carolyn Walden	0	1	0.0	1
Terri Whiting	0	1	0.1	1
Lesa Vidovic	1	0	0.4	1
Bill Bowman	0	1	0.2	1
Alia Zander	0	1	0.2	1
Youngbin Lim	0	1	0.5	1
Stacey Cohen	0	1	0.5	1
Suzanne Trezevant	0	1	0.6	1
Cindy MacDonald	1	0	0.4	1
Jan MacK	1	0	0.4	1
Tony Lyu	1	0	0.5	1
Lida Downey	1	0	0.5	1
Brian Toba	0	1	0.3	1
Gaelle Gravot	1	0	0.3	1
Laura Purcell	1	0	0.3	1
Sue Rhomberg	1	0	0.5	1
Katrin Maldre	1	0	0.2	1
Joanne Krug	0	1	0.4	1
Conni Stinek	0	1	0.4	1
Shelley Reese	0	1	0.7	1
Jennifer Peterson	0	1	0.7	1
Alexandra Lichtor	0	1	0.5	1
Justin Booms	0	1	0.5	1
Christina Greeley	1	0	0.6	1
Rosa Hugener	1	0	0.6	1
John Li	0	1	0.3	1
Caroline Werther	0	1	0.3	1
Christopher DuBois	1	0	0.9	1
Cindy Mulligan	1	0	0.9	1
Han Han	0	1	0.1	1
Erin Kramer	0	1	0.1	1
Stephanie Batka	0	1	0.2	1
Ryan Frederick	0	1	0.2	1
Lisa Rosen	0	1	0.2	1
Mindey Johnson	0	1	0.2	1
Martha Lloyd	0	1	0.1	1
Kimberly Ricchio	0	1	0.1	1
Cathy Evangelist	0	1	0.2	1
Anne Zanella-Gleason	0	1	0.2	1
Mimi Paffrath	0	1	0.2	1
Diane McKillen	0	1	0.2	1
Julie Colhoun	0	1	0.5	1
Angela Hanson	0	1	0.5	1
Hoda Elshakankery	0	1	0.2	1
Gayle Dominicis	0	1	0.2	1
Athena Uslander	1	0	0.8	1
Cara Waddle	1	0	0.3	1
Sue Wissing	0	1	0.6	1
Anne Sullivan	1	0	0.7	1
Colleen Chionis	0	1	0.2	1
Yuko Suzuki	0	1	0.2	1

Match History (56)

Date	Flight	Pos	Partner	Opponent(s)	Score	P(win)	Result
4/11/2026	40 & Over W 4.0 Winter	3# Doubles	Tomoko Hayashida	Lucie Kreidler / Kristen Lay	6-2 5-3	37%	L
1/17/2026	40 & Over W 4.0 Winter	2# Doubles	Tara Brix	Leigh Keyser / Patricia Nelson	6-3 6-0	22%	L
11/16/2025	40&O Women 4.0	2# Doubles	Tomoko Hayashida	Marilyn Tansey / Stephanie Thompson	7-6 6-5	26%	L
11/8/2025	40&O Women 4.0	2# Doubles	Michiko Nakagawa	Narissa Breger / Lisa Potash	4-6 6-4 1-0	58%	L
9/13/2025	40&O Women 4.0	2# Doubles	Michiko Nakagawa	Stacy Burgoon / Rosa Broseman	6-0 6-2	68%	W
9/6/2025	40&O Women 4.0	3# Doubles	Tomoko Hayashida	Jill Buckley / Elizabeth Opie	6-4 5-2	55%	W
6/28/2025	40 & Over W 4.0 Summer	1# Doubles	Michiko Nakagawa	Kelly Golden / Stefanie Turner	4-6 5-4 1-0	36%	L
6/23/2025	40 & Over W 4.0 Summer	2# Doubles	Yumi Ida	Julie Miller / Johanna Raimond	6-4 5-3	24%	L
4/26/2025	40 & Over W 4.0 Winter	1# Doubles	Deborah Sonoda	Karen Light / Stacey Tomczak	7-5 6-3	20%	L
3/29/2025	40 & Over W 4.0 Winter	2# Doubles	Deborah Sonoda	Amy Antoniolli / Heather Hayden	6-3 6-0	61%	L
3/8/2025	40 & Over W 4.0 Winter	3# Doubles	Beth Salomao	Sarah Korreck / Urszula Farry	6-2 6-1	21%	L
10/26/2024	55&O Women 8.0	3# Doubles	Patricia Behnke	Kathleen McLaughlin / Kelly Carroll	6-3 6-2	63%	W
10/6/2024	55&O Women 8.0	3# Doubles	Patricia Behnke	Joanne Lund / Alja Hessami-Maas	6-1 6-3	55%	W
7/21/2024	40 & Over W 4.0 Summer	2# Doubles	Deborah Sonoda	Silvia Kusaka / Jean Soh	6-1 6-3	13%	L
5/21/2024	40 & Over W 4.0 Summer	3# Doubles	Deborah Sonoda	Denise M Bosco / Sue Ludwig	7-5 3-1	51%	W
11/18/2023	55&O Women 8.0	2# Doubles	Patricia Behnke	Beth Immen / Susan Klawitter	6-2 6-2	40%	L
9/17/2023	55&O Women 8.0	2# Doubles	Miriam Abe	Erica Eisner / Zagorka James	7-6 1-5 1-0	42%	W
8/26/2023	Tri Women 3.0/3.5/4.0		Lara Phillips	Sophia Koliatsis / Haina Shin	5-7 5-3 1-0	31%	W
7/30/2023	Mix 8.0	2# Doubles	Venkat Tipirneni	Peter Shields / Elleson Song	7-5 6-1	9%	L
7/23/2023	Tri Women 3.0/3.5/4.0		Erin Wyatt	Sophia Koliatsis / Marjorie Baltazar	6-2 6-3	14%	W
7/16/2023	Mix 8.0	1# Doubles	Yasukazu Nagatake	Derek Jones / Michelle Perry	7-5 5-3	16%	L
7/9/2023	Mix 8.0	2# Doubles	Yoshitaka Nakahara	Thomas Gilbertson / Farrah Zick	6-2 3-6 1-0	16%	L
4/23/2023	8.0 Mixed Winter	1# Doubles	Andrew Meyer	Carlos Alcantar / Carolyn Walden	6-4 6-1	4%	L
4/22/2023	55 & Over W 8.0 Winter	3# Doubles	Nancy Maska	Beth Immen / Terri Whiting	6-1 6-2	12%	L
3/26/2023	55 & Over W 8.0 Winter	2# Doubles	Stephanie Batka	Rochelle Meng / Lesa Vidovic	7-5 4-2	42%	W
3/26/2023	8.0 Mixed Winter	2# Doubles	Yoichi Sumida	Bill Bowman / Alia Zander	6-3 7-5	25%	L
3/12/2023	55 & Over W 8.0 Winter	2# Doubles	Nancy Maska	Maria Lobo-Corey / Masako Ueda	6-0 2-6 1-0	25%	L
3/12/2023	8.0 Mixed Winter	2# Doubles	Toshio Sato	Youngbin Lim / Stacey Cohen	6-4 6-4	55%	L
3/4/2023	40 & Over W 4.0 Winter	2# Doubles	Raquel Karpinski	Julie Sujack / Suzanne Trezevant	6-4 3-6 1-0	58%	L
2/5/2023	55 & Over W 8.0 Winter	3# Doubles	Nancy Maska	Cindy MacDonald / Jan MacK	4-6 6-1 1-0	44%	W
1/28/2023	8.0 Mixed Winter	2# Doubles	Toshio Sato	Tony Lyu / Lida Downey	6-0 6-3	49%	W
1/22/2023	8.0 Mixed Winter	3# Doubles	Yoichi Sumida	Brian Toba / Sophia Koliatsis	6-4 7-5	31%	L
1/21/2023	40 & Over W 4.0 Winter	2# Doubles	Mya Murata	Gaelle Gravot / Laura Purcell	6-2 6-5	34%	W
1/8/2023	55 & Over W 8.0 Winter	2# Doubles	Nancy Maska	Sheryl Martin / Sue Rhomberg	6-1 6-2	52%	W
12/4/2022	55&O W 8.0	1# Doubles	Patricia Behnke	Julie Sujack / Katrin Maldre	6-2 4-6 1-0	23%	W
11/19/2022	40&O W 4.0	1# Doubles	Raquel Karpinski	Jean Soh / Masako Ueda	6-3 6-2	7%	L
11/13/2022	55&O W 8.0	2# Doubles	Ann Wiet	Joanne Krug / Conni Stinek	6-4 5-2	36%	L
11/12/2022	40&O W 4.0	3# Doubles	Deborah Sonoda	Shelley Reese / Jennifer Peterson	6-3 6-1	68%	L
10/30/2022	Mixed 8.0	1# Doubles	Yoichi Sumida	Alexandra Lichtor / Justin Booms	6-2 6-3	47%	L
10/30/2022	55&O W 8.0	3# Doubles	Nancy Maska	Christina Greeley / Rosa Hugener	6-2 2-6 1-0	61%	W
9/30/2022	Mixed 8.0	3# Doubles	Venkat Tipirneni	John Li / Caroline Werther	6-1 6-4	26%	L
8/28/2022	8.0 Mixed Summer	2# Doubles	Yoichi Sumida	Christopher DuBois / Cindy Mulligan	6-0 6-0	93%	W
8/19/2022	8.0 Mixed Summer	1# Doubles	Hideaki Takahashi	Han Han / Erin Kramer	6-1 6-4	14%	L
8/5/2022	8.0 Mixed Summer	1# Doubles	Andrew Meyer	Stephanie Batka / Ryan Frederick	6-2 6-2	23%	L
7/23/2022	8.0 Mixed Summer	3# Doubles	William Crain		6-0 6-0		W
6/23/2022	55 & over W 8.0 Summer	3# Doubles	Ann Wiet	Lisa Rosen / Mindey Johnson	7-6 2-0	21%	L
6/18/2022	40 & Over W 4.0 Summer	3# Doubles	Deborah Sonoda	Martha Lloyd / Kimberly Ricchio	6-4 6-2	10%	L
6/15/2022	55 & over W 8.0 Summer	1# Doubles	Mya Murata	Cathy Evangelist / Anne Zanella-Gleason	6-3 6-3	17%	L
5/28/2022	40 & Over W 4.0 Summer	3# Doubles	Tomoko Hayashida	Mimi Paffrath / Diane McKillen	7-6 6-1	17%	L
4/10/2022	55 & Over W 8.0 Winter	2# Doubles	Mya Murata	Julie Colhoun / Angela Hanson	6-4 6-5	55%	L
4/2/2022	40 & Over W 4.0 Winter	1# Doubles	Agnieszka Filipek	Hoda Elshakankery / Gayle Dominicis	6-2 6-4	22%	L
4/2/2022	55 & Over W 8.0 Winter	2# Doubles	Mya Murata	Sheryl Martin / Athena Uslander	6-4 6-0	85%	W
3/12/2022	55 & Over W 8.0 Winter	1# Doubles	Patricia Behnke	Rochelle Meng / Cara Waddle	6-7 4-3 1-0	34%	W
2/26/2022	40 & Over W 4.0 Winter	2# Doubles	Jan MacK	Maria Lobo-Corey / Sue Wissing	6-4 5-1	58%	L
2/5/2022	40 & Over W 4.0 Winter	2# Doubles	Mya Murata	Anne Sullivan / Sheryl Martin	7-5 3-5 1-0	74%	W
10/9/2021	40&O 4.0 Women	2# Doubles	Deborah Sonoda	Colleen Chionis / Yuko Suzuki	6-3 6-1	21%	L

Team History

Year	Flight	Team
2026	CDTA 40 & Over W 4.0 Winter Active	CDTA W 40&OW4.0 9.FV Hayashida Sat 4 $25
2026	CDTA E 40&O Women 4.0	CDTA E 40&OW4.0 12FV Hayashida Sat 4 $25
2025	CDTA 40 & Over W 4.0 Summer	CDTA S A40W4.0 11Forest View Hayashida Mon 7 $23
2025	CDTA E 55&O Women 8.0	CDTA E 55&OW8.0 7.Centre Court Karpinski Sun 10 $2
2025	CDTA 40 & Over W 4.0 Winter	CDTA W 40&OW4.0 6.Forest View Hayashida Sat 4 $23
2025	CDTA 55 & Over W 8.0 Winter	CDTA W 55&OW8.0 3.Centre Court Behnke Sun 10 $22
2024	CDTA 40 & Over W 4.0 Summer	CDTA S 40&OW4.0 8.Forest View Hayashida Mon 7 $23
2024	CDTA E 55&O Women 8.0	CDTA E 55&OW8.0 5.Centre Court Behnke Sun 10 $20
2023	CDTA ESL Mixed 18&O 8.0	CDTA E M18&O 8.0X Forest View Hayashida Sun 2 $21
2023	CDTA S Mix 18 & Over 8.0	CDTA S M18&O8.0X e.Forest View Hayashida Sun 9 $21
2023	CDTA 18 & Over 8.0 Mixed Winter	CDTA W M18&O 8.0X Forest View Hayashida Sun 2 $21
2023	CDTA ESL 40&O W 4.0	CDTA E 40&O W4.0 Forest View Hayashida Sat 4 $21
2023	CDTA ESL 55&O W 8.0	CDTA E 55&O W8.0 Centre Court Rajchel Sun 10 $20
2023	CDTA S Tri Women 3.0/3.5/4.0	CDTA S TriW3.0/3.5/4.0 b.Forest View Hayashida Sun 9 $21
2023	CDTA 40 & Over W 4.0 Winter	CDTA W 40&O 4.0W Forest View Hayashida Sat 4 $21
2023	CDTA 55 & Over W 8.0 Winter	CDTA W 55&O 8.0W Centre Court Rajchel Sun 10 $20
2022	CDTA 18 & Over 8.0 Mixed Summer	CDTA S M18&O 8.0X Forest View Hayashida Sat 9 $21
2022	CDTA ESL 40&O W/E 4.0 Women	CDTA E 40&O W/E 4.0W Forest View Hayashida Sat 4 $21
2022	CDTA 40 & Over W 4.0 Summer	CDTA S 40&O 4.0W Forest View Hayashida Mon 7 $21
2022	CDTA 55 & over W 8.0 Summer	CDTA S 55&O 8.0W Centre Court Rajchel Mon 7 $20
2022	CDTA 40 & Over W 4.0 Winter	CDTA W 40&O 4.0W Forest View Hayashida Sat 4 $21
2022	CDTA 55 & Over W 8.0 Winter	CDTA W 55&O 8.0W Centre Court Rajchel Sun 10 $20