Korczak, Daniel

USTA ID

2017172469

Gender

Male

Location

BARRINGTON, IL

WTN ID

KOR4692837

TennisLink · USTA · WTN

Active Flights

M 3.5 Winter

MTP (Korczak) · Captain

Mixed 7.0 Winter

FV (Korczak) · Captain

NTRP Ratings

Rating	Type	Year	Date	Expires
3.0	A	2025	Dec. 31, 2025	Dec. 31, 2028

WTN Ratings

Singles

29.75

Confidence 10 · 27.9–31.6

Doubles

31.09

Confidence 80 · 29.4–32.8

Position Distribution

Men's Combo 3.5

39 matches

1# Doubles

9 (23%)

2# Doubles

13 (33%)

2# Singles

1 (3%)

3# Doubles

16 (41%)

Mixed Doubles 7.0

19 matches

1# Doubles

9 (47%)

2# Doubles

1 (5%)

3# Doubles

9 (47%)

Partners

Partner	W	L	xW	Together
Mike Herlihy	3	7	5.6	10
Philip Johnson	3	5	3.9	8
Steve Pautler	3	5	3.8	8
Erica Donofrio	4	1	2.9	5
Victoria Dargis	2	1	1.9	3
Stacey Crossman	0	2	0.7	2
Peter Rosenbaum	0	2	0.9	2
Anne Lewis	1	0	0.5	1
Mehdi Afiatpour	1	0	0.5	1
Jacqueline Lakely	1	0	0.5	1
Neel Vaidya	1	0	0.5	1
Christine Orr	1	0	0.6	1
Kelly Couris	1	0	0.5	1
Patricia Morin	1	0	0.5	1
Amy Byrne	1	0	0.5	1
Stacy Borkowski	1	0	0.8	1
Steve Towne	0	1	0.2	1
Michael Waks	0	1	0.2	1
Alicia Tisbo	0	1	0.6	1
Vikas Shah	1	0	0.4	1
Mandar Bankhele	1	0	0.5	1
Greg Crossman	1	0	0.5	1
Amanda Cuca	0	1	0.3	1
Steven Dayon	1	0	0.9	1
Jim Lakely	1	0	0.6	1
David Moslander	0	1	0.8	1

Opponents

Opponent	W	L	xW	Faced
Andrew Dickerson	0	3	1.2	3
Michael Hong	0	2	0.4	2
Howard Gartzman	0	2	0.6	2
Atwood Burns	1	1	1.2	2
Eli Sidman	0	2	0.7	2
Jatin Vasa	0	2	0.9	2
Christopher Rogowski	1	1	1.2	2
Jerry Galinsky	1	1	1.3	2
Sergio Benavides	0	2	1.4	2
Thomas Strickler	0	2	0.9	2
MARK CUSHING	0	1	0.1	1
Patrick Gayatin	1	0	0.7	1
Raynard Laylo	1	0	0.7	1
Anthony Malizia	1	0	0.6	1
Michael Mankerian	1	0	0.6	1
Soumya Parija	0	1	0.1	1
Yifei Kong	0	1	0.1	1
Kyle Coates	0	1	0.5	1
Sean Conboy	0	1	0.5	1
Rajesh Garlapati	0	1	0.3	1
Andrey Petrov	0	1	0.3	1
Jim Rabchuk	0	1	0.7	1
John Randazzo	1	0	0.6	1
Manmeet Singh	1	0	0.6	1
Vinayagasubramani Balasubramanian	1	0	0.7	1
Kenneth Bui	1	0	0.7	1
Yvonne Davis	1	0	0.6	1
Josh Reinking	1	0	0.6	1
John McKitrick	0	1	0.3	1
Peter Kelsey	0	1	0.5	1
Brian Atad	1	0	0.5	1
Catie Hughes	1	0	0.5	1
Andrew Ross	0	1	0.5	1
Jeremy Bradford	1	0	0.5	1
Adam Yasinow	1	0	0.5	1
Nikhil Gaur	0	1	0.2	1
Deborah Holt	1	0	0.7	1
John Ohrlund	1	0	0.7	1
Nigel Karp	1	0	0.8	1
Joan St. Paul	1	0	0.8	1
Sourav Sen	0	1	0.4	1
Juan Lado	1	0	0.6	1
Chad Anderson	0	1	0.2	1
Thomas Huneck	0	1	0.7	1
Tom Kastner	0	1	0.2	1
Karn Sri	0	1	0.2	1
Marie Venckus	1	0	0.4	1
Mariusz Cislak	1	0	0.4	1
Terry Cornelissen	0	1	0.6	1
Cori Cornelissen	0	1	0.6	1
Sarah Terry	0	1	0.3	1
Chen Cheng	0	1	0.3	1
Kannan Venkataraman	1	0	0.4	1
Yasumi Onoda	1	0	0.4	1
Gitanas Indreika	1	0	0.6	1
LAWRENCE ZABLOCK	1	0	0.6	1
Toni Mountcastle	1	0	0.5	1
Andrew Zens	0	1	0.4	1
Gene Fleischer	0	1	0.4	1
Terri Parse	0	1	0.3	1
Rahul Patet	0	1	0.5	1
Vilia Dedinas	0	1	0.3	1
Erik Fidel	0	1	0.3	1
Richard Foss	1	0	0.9	1
David Graham	1	0	0.9	1
Laura Knapp	1	0	0.7	1
Carla Gonzales	0	1	0.8	1
Norbert Glod	0	1	0.8	1
Frank Barbaro	1	0	1.0	1
Argiris Kantzavelos	1	0	1.0	1
Derrick Broekemier	0	1	0.4	1
Youngbin Lim	0	1	0.4	1
KOHEI YAMAMOTO	0	1	0.5	1
Tsuyoshi Yamazaki	0	1	0.5	1
Jeanine Janzen	0	1	0.6	1
Anthony Jackson	1	0	0.6	1
Kautilya Ak	1	0	0.6	1
Ying Guo	1	0	0.5	1
Daniel Peistrup	1	0	0.5	1
Igor Gogov	0	1	0.4	1
Howard Wu	0	1	0.4	1
Michael McFaul	0	1	0.8	1
Carlo Lagman	1	0	0.7	1
Dhiraj Rustagi	1	0	0.7	1
Daniel Michael	0	1	0.6	1
Jason Feldgreber	0	1	0.6	1
Jacqui Key	1	0	0.6	1
Misha Hanson	1	0	0.6	1

Match History (58)

Date	Flight	Pos	Partner	Opponent(s)	Score	P(win)	Result
4/11/2026	M 3.5 Winter	1# Doubles	Philip Johnson	Michael Hong / MARK CUSHING	6-1 6-2	9%	L
3/8/2026	M 3.5 Winter	1# Doubles	Philip Johnson	Patrick Gayatin / Raynard Laylo	6-2 6-3	68%	W
3/1/2026	M 3.5 Winter	3# Doubles	Mike Herlihy	Anthony Malizia / Michael Mankerian	6-0 6-1	64%	W
2/22/2026	M 3.5 Winter	1# Doubles	Steve Pautler	Soumya Parija / Yifei Kong	6-0 6-2	10%	L
1/31/2026	M 3.5 Winter	2# Doubles	Philip Johnson	Kyle Coates / Sean Conboy	6-3 6-2	49%	L
1/25/2026	M 3.5 Winter	3# Doubles	Philip Johnson	Howard Gartzman / Andrew Dickerson	3-6 6-4 1-0	34%	L
11/8/2025	Mixed 7.0	3# Doubles	Anne Lewis		6-0 6-0		W
9/14/2025	Men 3.5	3# Doubles	Mehdi Afiatpour		6-0 6-0		W
9/14/2025	Mixed 7.0	3# Doubles	Jacqueline Lakely		6-0 6-0		W
9/6/2025	Men 3.5	2# Doubles	Philip Johnson	Rajesh Garlapati / Andrey Petrov	6-4 6-2	27%	L
7/13/2025	M 3.5 Summer	2# Doubles	Philip Johnson	Atwood Burns / Jim Rabchuk	2-6 6-4 1-0	69%	L
7/9/2025	M 3.5 Summer	2# Doubles	Philip Johnson	John Randazzo / Manmeet Singh	6-7 6-2 1-0	59%	W
6/15/2025	M 3.5 Summer	3# Doubles	Philip Johnson	Vinayagasubramani Balasubramanian / Kenneth Bui	4-6 6-2 1-0	74%	W
4/13/2025	M 3.5 Winter	3# Doubles	Neel Vaidya		6-0 6-0		W
4/5/2025	Mixed 7.0 Winter	3# Doubles	Christine Orr	Yvonne Davis / Josh Reinking	6-4 6-3	57%	W
3/30/2025	M 3.5 Winter	3# Doubles	Steve Pautler	Michael Hong / John McKitrick	6-2 6-3	30%	L
9/8/2024	Men 3.5	3# Doubles	Mike Herlihy	Peter Kelsey / Eli Sidman	6-2 6-0	49%	L
7/14/2024	7.0 Mixed Summer	3# Doubles	Kelly Couris	Brian Atad / Catie Hughes	1-6 6-2 1-0	47%	W
7/13/2024	M 3.5 Summer	2# Doubles	Mike Herlihy	Andrew Ross / Andrew Dickerson	6-1 6-0	55%	L
6/30/2024	7.0 Mixed Summer	3# Doubles	Patricia Morin		6-0 6-0		W
6/2/2024	M 3.5 Summer	2# Doubles	Steve Pautler	Jeremy Bradford / Adam Yasinow	6-4 3-6 1-0	51%	W
6/2/2024	7.0 Mixed Summer	3# Doubles	Amy Byrne		6-0 6-0		W
5/19/2024	M 3.5 Summer	2# Singles	—	Nikhil Gaur	6-3 6-1	18%	L
3/2/2024	7.0 Mixed Winter	3# Doubles	Erica Donofrio	Deborah Holt / John Ohrlund	6-1 6-1	68%	W
1/19/2024	7.0 Mixed Winter	3# Doubles	Stacy Borkowski	Nigel Karp / Joan St. Paul	6-4 6-2	84%	W
6/25/2023	Men 3.5	1# Doubles	Mike Herlihy	Sourav Sen / Jatin Vasa	6-1 6-4	40%	L
6/17/2023	Men 3.5	1# Doubles	Mike Herlihy	Juan Lado / Christopher Rogowski	7-6 6-2	57%	W
6/3/2023	Men 3.5	2# Doubles	Steve Towne	Chad Anderson / Eli Sidman	6-4 6-7	21%	L
2/11/2023	M 3.5 Winter	3# Doubles	Mike Herlihy	Thomas Huneck / Jerry Galinsky	6-7 3-1 1-0	67%	L
1/21/2023	M 3.5 Winter	2# Doubles	Michael Waks	Tom Kastner / Karn Sri	6-4 6-3	24%	L
12/11/2022	Mixed 7.0	1# Doubles	Victoria Dargis	Marie Venckus / Mariusz Cislak	7-5 3-6 1-0	42%	W
12/3/2022	Mixed 7.0	3# Doubles	Alicia Tisbo	Terry Cornelissen / Cori Cornelissen	6-4 6-4	56%	L
11/19/2022	Mixed 7.0	1# Doubles	Stacey Crossman	Sarah Terry / Chen Cheng	6-2 6-1	32%	L
11/13/2022	M 3.5	3# Doubles	Vikas Shah	Kannan Venkataraman / Yasumi Onoda	6-2 1-6 1-0	36%	W
10/29/2022	M 3.5	1# Doubles	Steve Pautler	Sergio Benavides / Christopher Rogowski	6-1 3-6 1-0	65%	L
10/23/2022	M 3.5	2# Doubles	Steve Pautler	Gitanas Indreika / LAWRENCE ZABLOCK	6-4 6-1	65%	W
10/16/2022	M 3.5	2# Doubles	Mike Herlihy	Andrew Dickerson / Howard Gartzman	7-6 6-1	30%	L
10/15/2022	Mixed 7.0	1# Doubles	Erica Donofrio	Toni Mountcastle / Atwood Burns	6-4 6-0	48%	W
10/2/2022	M 3.5	3# Doubles	Peter Rosenbaum	Andrew Zens / Gene Fleischer	6-1 7-5	41%	L
7/10/2022	M 3.5 Summer	3# Doubles	Mandar Bankhele		6-0 6-0		W
5/21/2022	7.0 Mixed Summer	1# Doubles	Stacey Crossman	Terri Parse / Thomas Strickler	2-6 6-2 1-0	35%	L
5/14/2022	M 3.5 Summer	2# Doubles	Peter Rosenbaum	Rahul Patet / Jatin Vasa	6-3 6-0	50%	L
4/9/2022	M 3.5 Winter	3# Doubles	Greg Crossman		6-0 6-0		W
4/2/2022	7.0 Mixed Winter	1# Doubles	Amanda Cuca	Vilia Dedinas / Erik Fidel	6-0 6-7 1-0	29%	L
3/20/2022	M 3.5 Winter	3# Doubles	Steven Dayon	Richard Foss / David Graham	6-3 6-1	89%	W
3/18/2022	7.0 Mixed Winter	1# Doubles	Victoria Dargis	Laura Knapp / Jerry Galinsky	7-6 6-3	67%	W
3/13/2022	7.0 Mixed Winter	1# Doubles	Victoria Dargis	Carla Gonzales / Norbert Glod	3-6 6-4 1-0	80%	L
3/6/2022	M 3.5 Winter	3# Doubles	Mike Herlihy	Frank Barbaro / Argiris Kantzavelos	7-6 6-1	97%	W
3/5/2022	M 3.5 Winter	2# Doubles	Steve Pautler	Derrick Broekemier / Youngbin Lim	6-1 7-5	37%	L
11/21/2021	3.5 Men	1# Doubles	Steve Pautler	KOHEI YAMAMOTO / Tsuyoshi Yamazaki	4-6 6-2 1-0	46%	L
11/14/2021	Mixed 7.0	1# Doubles	Erica Donofrio	Jeanine Janzen / Thomas Strickler	6-4 6-2	56%	L
10/24/2021	3.5 Men	3# Doubles	Jim Lakely	Anthony Jackson / Kautilya Ak	6-1 1-6 1-0	64%	W
10/23/2021	Mixed 7.0	2# Doubles	Erica Donofrio	Ying Guo / Daniel Peistrup	6-2 3-6 1-0	50%	W
10/16/2021	3.5 Men	1# Doubles	Mike Herlihy	Igor Gogov / Howard Wu	3-6 6-4 1-0	36%	L
10/2/2021	3.5 Men	1# Doubles	David Moslander	Sergio Benavides / Michael McFaul	4-6 6-1 1-0	77%	L
9/25/2021	3.5 Men	2# Doubles	Steve Pautler	Carlo Lagman / Dhiraj Rustagi	6-3 6-7 1-0	73%	W
9/12/2021	3.5 Men	3# Doubles	Mike Herlihy	Daniel Michael / Jason Feldgreber	4-6 7-5 1-0	60%	L
9/11/2021	Mixed 7.0	1# Doubles	Erica Donofrio	Jacqui Key / Misha Hanson	6-4 6-1	64%	W

Team History

Year	Flight	Team	Role
2026	CDTA 18 & Over M 3.5 Winter Active	CDTA W 18&OM3.5 11.MTP Korczak Sun 1 $27	Captain
2026	CDTA E 18&O Men 3.5	CDTA E 18&OM3.5 8MTP Korczak Sun 1 $27	Captain
2026	CDTA Mixed 18 & Over 7.0 Winter Active	CDTA W M18&O7.0 3.FV Korczak Sun 2 $25	Captain
2026	CDTA E Mixed 18&O 7.0	CDTA E M18&O7.0 2FV Korczak Sun 2 $25	Captain
2025	CDTA 18 & Over M 3.5 Summer	CDTA S A18M3.5 7MT Pal Korczak Sun 1 $26	Captain
2025	CDTA E 18&O Men 3.5	CDTA E 18&OM3.5 8.MT Pal Korczak Sun 1 $26	Captain
2025	CDTA 18 & Over M 3.5 Winter	CDTA W 18&OM3.5 10.MT Pal Korczak Sun 1 $26	Captain
2025	CDTA E Mixed 18&O 7.0	CDTA E M18&OX7.0 5.Forest View Korczak Sun 2	Captain
2025	CDTA Mixed 18 & Over 7.0 Winter	CDTA W M18&OX7.0 3.Forest View Korczak Sun 2 $23	Captain
2024	CDTA 18 & Over M 3.5 Summer	CDTA S 18&OM3.5 6.MT Pal Korczak Sun 1 $26	Captain
2024	CDTA 18 & Over 7.0 Mixed Summer	CDTA S M18&OX7.0 5.Forest View Korczak Sun 11 $23	Captain
2024	CDTA 18 & Over 7.0 Mixed Winter	CDTA W M18&OX7.0 7.Forest View Korczak Sun 4 $23	Captain
2023	CDTA ESL 18&O M 3.5	CDTA E 18&O M3.5 MT Pal Korczak Sun 1 $25	Captain
2023	CDTA S 18 & Over Men 3.5	CDTA S 18&OM3.5 f.MT Pal Korczak Sun 1 $25	Captain
2023	CDTA 18 & Over M 3.5 Winter	CDTA W 18&O 3.5M MT Pal Korczak Sun 1 $25	Captain
2023	CDTA ESL Mixed 18&O 7.0	CDTA E M18&O 7.0X Forest View Korczak Sat 2 $21	Captain
2022	CDTA ESL 18&O W/E 3.5 Men	CDTA E 18&O W/E 3.5M MT Pal Korczak Sun 1 $25	Captain
2022	CDTA 18 & Over M 3.5 Summer	CDTA S 18&O 3.5M MT Pal Korczak Sun 1 $26	Captain
2022	CDTA 18 & Over M 3.5 Winter	CDTA W 18&O 3.5M MT Pal Korczak Sun 1 $26	Captain
2022	CDTA ESL Mixed 18&O 7.0	CDTA E M18&O 7.0X Forest View Korczak Sun 2 $21	Captain
2022	CDTA 18 & Over 7.0 Mixed Summer	CDTA S M18&O 7.0X Forest View Korczak Sat 9 $21	Captain
2022	CDTA 18 & Over 7.0 Mixed Winter	CDTA W M18&O 7.0X Forest View Korczak Sun 2 $21	Captain