Guthrie, William

USTA ID

10887808

Gender

Male

Location

Chicago, IL

WTN ID

GUT6357194

Active Flights

Tam (Needler)

Tam (Needler)

Rating	Type	Year	Date	Expires
4.5	S	2026	Jan. 18, 2026	Jan. 18, 2028

Singles

26.71

Confidence 10 · 24.9–28.6

Doubles

28.40

Confidence 70 · 26.7–30.1

Men's Combo 4.5

14 matches

1# Doubles

2 (14%)

2# Doubles

6 (43%)

3# Doubles

6 (43%)

Mixed Doubles 9.0

3 matches

2# Doubles

1 (33%)

3# Doubles

2 (67%)

Partner	W	L	xW	Together
Russell Needler	0	5	1.3	5
Alex Ritter	0	3	0.2	3
Rodney Berganos	0	1	0.4	1
Nick Werth	1	0	0.5	1
Griffin Calkins	0	1	0.1	1
Patrick Angelo	0	1	0.2	1
Oliver Gallego	0	1	0.4	1
Werner Camoras	0	1	0.4	1
David Burciaga	1	0	0.3	1
Ravi Jhaveri	1	0	0.3	1
Joshua Vance	0	1	0.5	1

Opponent	W	L	xW	Faced
David Peistrup	0	2	0.3	2
Barry Saltzman	0	1	0.4	1
Andrew Salski	0	1	0.4	1
Glenn Evans	0	1	0.2	1
Mark Exner	0	1	0.2	1
William Knox	0	1	0.1	1
Nicolas Grasty	0	1	0.1	1
Kevin Zimmerman	0	1	0.1	1
Mariusz Biernacki	0	1	0.3	1
John Laurx	0	1	0.3	1
Jeff Altenau	0	1	0.4	1
Eddie DeLaCruz	0	1	0.4	1
Andrew Wolfberg	0	1	0.2	1
Carlos Alcantar	0	1	0.1	1
Whitney Martin	0	1	0.1	1
Karlyn Martin	0	1	0.0	1
Rafael Lozada	0	1	0.0	1
Alisa Hall	0	1	0.1	1
Dennis Kontorovich	0	1	0.1	1
Mark Hansen	0	1	0.4	1
Russell Needler	0	1	0.4	1
Michael Arenson	0	1	0.4	1
Justin Hetler	0	1	0.4	1
Claude Cimino	0	1	0.3	1
Erik Halperin	0	1	0.3	1
Ian Barr	1	0	0.3	1
David Polmer	1	0	0.3	1
Brian Burghgraef	1	0	0.3	1
Keith Kinch	1	0	0.3	1
Chris Moreno	0	1	0.5	1
Alexander Duering	0	1	0.5	1

Date	Flight	Pos	Partner	Opponent(s)	Score	P(win)	Result
3/14/2026	40 & Over M 4.5 Winter	2# Doubles	Rodney Berganos	Barry Saltzman / Andrew Salski	6-3 3-6 1-0	37%	L
3/8/2026	40 & Over M 4.5 Winter	2# Doubles	Russell Needler	Glenn Evans / Mark Exner	6-7 6-3 1-0	21%	L
2/28/2026	40 & Over M 4.5 Winter	1# Doubles	Nick Werth		6-0 6-0		W
2/28/2026	M 4.5 Winter	3# Doubles	Griffin Calkins	William Knox / Nicolas Grasty	5-7 7-5 1-0	10%	L
2/22/2026	M 4.5 Winter	3# Doubles	Russell Needler	Kevin Zimmerman / David Peistrup	6-3 6-0	9%	L
11/30/2025	40&O Men 4.5	3# Doubles	Russell Needler	Mariusz Biernacki / John Laurx	6-3 6-4	34%	L
11/16/2025	40&O Men 4.5	3# Doubles	Russell Needler	Jeff Altenau / Eddie DeLaCruz	5-7 6-4 1-0	37%	L
3/16/2024	40 & Over M 4.5 Winter	2# Doubles	Patrick Angelo	Andrew Wolfberg / David Peistrup	6-2 6-2	18%	L
7/31/2023	Mix 9.0	3# Doubles	Alex Ritter	Carlos Alcantar / Whitney Martin	6-1 6-1	7%	L
2/11/2023	9.0 Mixed Winter	2# Doubles	Alex Ritter	Karlyn Martin / Rafael Lozada	6-4 1-6 1-0	4%	L
1/8/2023	9.0 Mixed Winter	3# Doubles	Alex Ritter	Alisa Hall / Dennis Kontorovich	6-3 6-3	9%	L
10/23/2022	M 4.5	2# Doubles	Oliver Gallego	Mark Hansen / Russell Needler	6-3 6-3	40%	L
10/1/2022	M 4.5	2# Doubles	Werner Camoras	Michael Arenson / Justin Hetler	6-2 6-2	45%	L
2/19/2022	M 4.5 Winter	2# Doubles	Russell Needler	Claude Cimino / Erik Halperin	6-4 6-2	27%	L
11/21/2021	4.5 Men	3# Doubles	David Burciaga	Ian Barr / David Polmer	6-3 0-6 1-0	32%	W
11/7/2021	4.5 Men	3# Doubles	Ravi Jhaveri	Brian Burghgraef / Keith Kinch	6-3 6-4	29%	W
9/25/2021	4.5 Men	1# Doubles	Joshua Vance	Chris Moreno / Alexander Duering	6-4 7-6	51%	L

Year	Flight	Team
2026	CDTA 18 & Over M 4.5 Winter Active	CDTA W 18&OM4.5 2.Tam Needler Sun 7 $22
2026	CDTA 40 & Over M 4.5 Winter Active	CDTA W 40&OM4.5 2.Tam Needler Sat 5 $22
2026	CDTA E 40&O Men 4.5	CDTA E 40&OM4.5 1Tam Needler Sat 7 $22
2024	CDTA 40 & Over M 4.5 Winter	CDTA W 40&OM4.5 3.Naperville Laurx Sat 4 $22
2023	CDTA ESL 18&O M 4.5	CDTA E 18&O M4.5 Glenbrook Aguayo Sun 7 $25
2023	CDTA S Mix 18 & Over 9.0	CDTA S M18&O9.0X d.Tam Copland Wed 7 $22
2023	CDTA 18 & Over 9.0 Mixed Winter	CDTA W M18&O 9.0X Deer Creek Han Sun 6 $22
2022	CDTA ESL 18&O W/E 4.5 Men	CDTA E 18&O W/E 4.5M Tam Needler Sun 7 $20
2022	CDTA 18 & Over M 4.5 Winter	CDTA W 18&O 4.5M Tam Needler Sun 7 $22