Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (2019) View Advanced Player Stats
David Zirkle (Alamo, CA)
Male 		4.0 C
12/31/2023
Estimated Dynamic Rating 3.8140
12/12/2024
Projected Year End Rating ------
----------
4.0 Rating Meter
Rating Meter
3.5001 - 4.0000
Recent Match History Current Rating History
2019 Overall Season [Doubles]
League/Level Total
Matches		 Win Loss Tie WPct Total
Sets		 Win Loss WPct Total
Games		 Win Loss WPct Defaults
Adult 65+ 8.0 8 4 4 0 50.0 17 9 8 52.9 136 71 65 52.2 0
Combo 8.5 3 2 1 0 66.7 7 5 2 71.4 61 36 25 59.0 0
Total 11 6 5 0 54.5 24 14 10 58.3 197 107 90 54.3 0
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
11/16/2019 Combo
8.5		 ROUND HILL CC CM8.5B
No California		 D3 Warren Parti
(3.70) 		Ryan Zlock
(-----)
Bob Lewis
(3.54) 		W 7-5
6-3		 3.98 -----
10/06/2019 Combo
8.5		 ROUND HILL CC CM8.5B
No California		 D2 Brad Skepner
(3.49) 		Kahn Angsupanich
(3.88)
Andrew Oliver
(4.05) 		W 6-3
6-3		 4.47 -----
09/29/2019 Combo
8.5		 ROUND HILL CC CM8.5B
No California		 D3 Matt Dublin
(3.70) 		Chris Blick
(4.17)
James Theriault
(3.90) 		L 3-6
7-5
1-0		 4.25 -----
05/24/2019 Adult 65+
8.0		 ROUND HILL CC 65AM8.0A
No California		 D1 Joe Olson
(3.35) 		Irwin Cohen
(3.42)
Michael Rolley
(3.50) 		W 6-1
6-1		 4.19 4.08
05/20/2019 Adult 65+
8.0		 ROUND HILL CC 65AM8.0A
No California		 D2 Joe Olson
(3.38) 		Keith Narasaki
(3.58)
Peter OBrien
(3.84) 		L 6-2
2-6
1-0		 4.00 4.03
05/10/2019 Tournament
M70d		 Oakland Senior Sectional Championships F Toby Marion
(3.88) 		Roger Kahn
(3.92)
Michael Saputo
(3.99) 		L Def ----- -----
05/07/2019 Adult 65+
8.0		 ROUND HILL CC 65AM8.0A
No California		 D2 Joe Olson
(3.45) 		John Barsky
(3.70)
Harrison Fraker
(3.55) 		W 7-5
6-3		 4.06 4.04
04/30/2019 Adult 65+
8.0		 ROUND HILL CC 65AM8.0A
No California		 D1 Joe Olson
(3.39) 		Irwin Cohen
(3.42)
Richard Morgan
(3.56) 		W 6-1
6-2		 4.15 4.06
04/23/2019 Adult 65+
8.0		 ROUND HILL CC 65AM8.0A
No California		 D2 Joe Olson
(3.52) 		A J S Chhatwal
(-----)
Bruce Lunsford
(3.40) 		L 6-4
6-2		 S 4.03
03/26/2019 Adult 65+
8.0		 ROUND HILL CC 65AM8.0A
No California		 D2 Joe Olson
(3.36) 		Rich Green
(3.56)
Craig Williams
(3.68) 		W 6-2
7-5		 4.11 4.03
03/12/2019 Adult 65+
8.0		 ROUND HILL CC 65AM8.0A
No California		 D1 Joe Olson
(3.41) 		Jerry Garcia
(3.78)
Randy Jang
(3.88) 		L 6-2
6-2		 3.86 4.00
02/01/2019 Adult 65+
8.0
Nationals		 LA CANTERA RC 65AM9.0A
No California		 D3 Jack Walker
(4.05) 		Rick Sahlman
(4.21)
Ivan Harlow
(4.08) 		L 6-0
6-3		 3.83 4.04
11/16/2019 D3 Combo
8.5
ROUND HILL CC CM8.5B
No California		 W VALLEY VISTA RC/VVRC COURTS CM8.5A
No California
Warren Parti (3.70) 7-5
6-3		 Ryan Zlock (-----)
Bob Lewis (3.54)
Match: 3.98 Rating: -----
10/06/2019 D2 Combo
8.5
ROUND HILL CC CM8.5B
No California		 W MORAGA CC CM8.5A
No California
Brad Skepner (3.49) 6-3
6-3		 Kahn Angsupanich (3.88)
Andrew Oliver (4.05)
Match: 4.47 Rating: -----
09/29/2019 D3 Combo
8.5
ROUND HILL CC CM8.5B
No California		 L LAFAYETTE TC CM8.5A
No California
Matt Dublin (3.70) 3-6
7-5
1-0		 Chris Blick (4.17)
James Theriault (3.90)
Match: 4.25 Rating: -----
05/24/2019 D1 Adult 65+
8.0
ROUND HILL CC 65AM8.0A
No California		 W WALNUT CREEK RC/WALNUT CREEK 65AM8.0A
No California
Joe Olson (3.35) 6-1
6-1		 Irwin Cohen (3.42)
Michael Rolley (3.50)
Match: 4.19 Rating: 4.08
05/20/2019 D2 Adult 65+
8.0
ROUND HILL CC 65AM8.0A
No California		 L BERKELEY TC 65AM8.0A
No California
Joe Olson (3.38) 6-2
2-6
1-0		 Keith Narasaki (3.58)
Peter OBrien (3.84)
Match: 4.00 Rating: 4.03
Oakland Senior Sectional Championships
05/10/2019 F Tournament
M70d
L
Toby Marion (3.88) Def Roger Kahn (3.92)
Michael Saputo (3.99)
Match: ----- Rating: -----
05/07/2019 D2 Adult 65+
8.0
ROUND HILL CC 65AM8.0A
No California		 W BERKELEY TC 65AM8.0A
No California
Joe Olson (3.45) 7-5
6-3		 John Barsky (3.70)
Harrison Fraker (3.55)
Match: 4.06 Rating: 4.04
04/30/2019 D1 Adult 65+
8.0
ROUND HILL CC 65AM8.0A
No California		 W WALNUT CREEK RC/WALNUT CREEK 65AM8.0A
No California
Joe Olson (3.39) 6-1
6-2		 Irwin Cohen (3.42)
Richard Morgan (3.56)
Match: 4.15 Rating: 4.06
04/23/2019 D2 Adult 65+
8.0
ROUND HILL CC 65AM8.0A
No California		 L FREMONT TC 65AM8.0A
No California
Joe Olson (3.52) 6-4
6-2		 A J S Chhatwal (-----)
Bruce Lunsford (3.40)
Match: S Rating: 4.03
03/26/2019 D2 Adult 65+
8.0
ROUND HILL CC 65AM8.0A
No California		 W BERKELEY TC 65AM8.0A
No California
Joe Olson (3.36) 6-2
7-5		 Rich Green (3.56)
Craig Williams (3.68)
Match: 4.11 Rating: 4.03
03/12/2019 D1 Adult 65+
8.0
ROUND HILL CC 65AM8.0A
No California		 L FREMONT TC 65AM8.0A
No California
Joe Olson (3.41) 6-2
6-2		 Jerry Garcia (3.78)
Randy Jang (3.88)
Match: 3.86 Rating: 4.00
02/01/2019 D3 Adult 65+
8.0
Nationals
LA CANTERA RC 65AM9.0A
No California		 L Beast of the East
Middle States
Jack Walker (4.05) 6-0
6-3		 Rick Sahlman (4.21)
Ivan Harlow (4.08)
Match: 3.83 Rating: 4.04
Glossary
Match Player rating for individual match.
Rating Dynamic rating after completed match.
NC Match not yet calculated into rating.
S Self rated or unrated player involved in match so no match rating calculated for current player.
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