Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (2023) View Advanced Player Stats
Joel Schaffer (Orinda, CA)
Male 		4.0 C
12/31/2023
Estimated Dynamic Rating 3.4877
5/23/2024
Projected Year End Rating ------
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4.0 Rating Meter
Rating Meter
3.5001 - 4.0000
Recent Match History Current Rating History
2023 Overall Season
League/Level Total
Matches		 Win Loss Tie WPct Total
Sets		 Win Loss WPct Total
Games		 Win Loss WPct Defaults
Adult 18+ 4.0 8 0 8 0 0.0 16 0 16 0.0 138 41 97 29.7 0
Adult 40+ 4.0 3 0 3 0 0.0 6 0 6 0.0 40 4 36 10.0 0
Adult 55+ 8.0 1 1 0 0 100.0 2 2 0 100.0 21 13 8 61.9 1
Adult 65+ 8.0 2 1 1 0 50.0 4 2 2 50.0 42 21 21 50.0 0
Total 14 2 12 0 14.3 28 4 24 14.3 241 79 162 32.8 1
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
06/18/2023 Adult 18+
4.0		 WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 D2 J Patrick Forden
(3.28) 		Paul Starn
(3.47)
Scott Davis
(3.88) 		L 6-2
6-2		 3.51 3.54
06/11/2023 Adult 18+
4.0		 WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 D1 eugene beyder
(3.82) 		Mike Huynh
(3.54)
James Lastoskie
(3.66) 		L 7-6
6-4		 3.40 3.53
06/09/2023 Adult 18+
4.0		 WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 D2 James Tak
(3.37) 		Saul Isidro
(3.59)
Moshrek Sobhy
(3.72) 		L 6-2
6-3		 3.50 3.56
06/07/2023 Adult 18+
4.0		 WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 D2 David Takeuchi
(3.26) 		Vijay Avunuri
(3.49)
Prasanth Vennelakanti
(3.74) 		L 6-1
6-1		 3.39 3.55
06/04/2023 Adult 18+
4.0		 WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 D1 Sujit Chakravorti
(3.66) 		Christopher Perez
(3.71)
Punyanjan Sen
(3.77) 		L 6-3
6-3		 3.51 3.57
05/28/2023 Adult 55+
8.0		 WALNUT CREEK RC/Walnut Creek TC 55AM8.0B
No California		 D3 Brian Kuritsubo
(-----) 		Default W 6-0
6-0		 ----- -----
05/27/2023 Adult 18+
4.0		 WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 D1 james Hopkins
(3.57) 		Sean Carroll
(3.92)
Jonathan Harris
(3.85) 		L 6-1
6-3		 3.61 3.59
05/17/2023 Adult 18+
4.0		 WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 D1 J Patrick Forden
(3.29) 		Charanjit Dhillon
(3.89)
Rajiv Vora
(3.65) 		L 6-2
6-3		 3.66 3.60
04/29/2023 Adult 18+
4.0		 WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 D1 James Deak
(3.69) 		Praveen Subramanian
(3.73)
Vinayak Shenoi
(3.67) 		L 6-1
6-4		 3.42 3.55
04/23/2023 Adult 55+
8.0		 WALNUT CREEK RC/Walnut Creek TC 55AM8.0B
No California		 D1 Matthew Hudson
(3.69) 		Todd Curley
(3.68)
Richard Sipos
(3.67) 		W 6-2
7-6		 3.75 3.61
04/10/2023 Adult 65+
8.0		 WALNUT CREEK RC/Walnut Creek TC 65AM8.0A
No California		 D3 Steve Wheeler
(3.85) 		Dean Allen
(3.61)
Scott Kramer
(3.89) 		W 7-5
6-4		 3.69 3.58
04/04/2023 Adult 65+
8.0		 WALNUT CREEK RC/Walnut Creek TC 65AM8.0A
No California		 D3 james Hopkins
(3.57) 		James Gay
(3.66)
Carl Bass
(3.57) 		L 6-4
6-4		 3.51 3.54
03/13/2023 Adult 40+
4.0		 WALNUT CREEK RC/Walnut Creek TC 40AM4.0A
No California		 D2 David Takeuchi
(3.20) 		Bill Cox
(3.76)
John Gingrich
(3.86) 		L 6-3
6-1		 3.64 3.56
03/05/2023 Adult 40+
4.0		 WALNUT CREEK RC/Walnut Creek TC 40AM4.0A
No California		 D2 Abid Majid
(3.53) 		Todd Curley
(3.69)
Scott Davis
(4.01) 		L 6-0
6-0		 3.38 3.53
03/02/2023 Adult 40+
4.0		 WALNUT CREEK RC/Walnut Creek TC 40AM4.0A
No California		 D2 James Tak
(3.23) 		Daniel Jenkinson
(3.80)
Harry Van Meines
(3.63) 		L 6-0
6-0		 3.42 3.56
06/18/2023 D2 Adult 18+
4.0
WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 L ROUND HILL CC 18AM4.0B
No California
J Patrick Forden (3.28) 6-2
6-2		 Paul Starn (3.47)
Scott Davis (3.88)
Match: 3.51 Rating: 3.54
06/11/2023 D1 Adult 18+
4.0
WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 L PINOLE PK 18AM4.0A
No California
eugene beyder (3.82) 7-6
6-4		 Mike Huynh (3.54)
James Lastoskie (3.66)
Match: 3.40 Rating: 3.53
06/09/2023 D2 Adult 18+
4.0
WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 L PINOLE PK 18AM4.0A
No California
James Tak (3.37) 6-2
6-3		 Saul Isidro (3.59)
Moshrek Sobhy (3.72)
Match: 3.50 Rating: 3.56
06/07/2023 D2 Adult 18+
4.0
WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 L DISCOVERY BAY COMMUNITY CTR 18AM4.0A
No California
David Takeuchi (3.26) 6-1
6-1		 Vijay Avunuri (3.49)
Prasanth Vennelakanti (3.74)
Match: 3.39 Rating: 3.55
06/04/2023 D1 Adult 18+
4.0
WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 L Walnut Creek TC 18AM4.0D
No California
Sujit Chakravorti (3.66) 6-3
6-3		 Christopher Perez (3.71)
Punyanjan Sen (3.77)
Match: 3.51 Rating: 3.57
05/28/2023 D3 Adult 55+
8.0
WALNUT CREEK RC/Walnut Creek TC 55AM8.0B
No California		 W ROUND HILL CC 55AM8.0A
No California
Brian Kuritsubo (-----) 6-0
6-0		 Default
Match: ----- Rating: -----
05/27/2023 D1 Adult 18+
4.0
WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 L ORINDA CC 18AM4.0A
No California
james Hopkins (3.57) 6-1
6-3		 Sean Carroll (3.92)
Jonathan Harris (3.85)
Match: 3.61 Rating: 3.59
05/17/2023 D1 Adult 18+
4.0
WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 L DISCOVERY BAY COMMUNITY CTR 18AM4.0A
No California
J Patrick Forden (3.29) 6-2
6-3		 Charanjit Dhillon (3.89)
Rajiv Vora (3.65)
Match: 3.66 Rating: 3.60
04/29/2023 D1 Adult 18+
4.0
WALNUT CREEK RC/Walnut Creek TC 18AM4.0A
No California		 L Walnut Creek TC 18AM4.0D
No California
James Deak (3.69) 6-1
6-4		 Praveen Subramanian (3.73)
Vinayak Shenoi (3.67)
Match: 3.42 Rating: 3.55
04/23/2023 D1 Adult 55+
8.0
WALNUT CREEK RC/Walnut Creek TC 55AM8.0B
No California		 W ROUND HILL CC 55AM8.0A
No California
Matthew Hudson (3.69) 6-2
7-6		 Todd Curley (3.68)
Richard Sipos (3.67)
Match: 3.75 Rating: 3.61
04/10/2023 D3 Adult 65+
8.0
WALNUT CREEK RC/Walnut Creek TC 65AM8.0A
No California		 W DANVILLE ST 65AM8.0A
No California
Steve Wheeler (3.85) 7-5
6-4		 Dean Allen (3.61)
Scott Kramer (3.89)
Match: 3.69 Rating: 3.58
04/04/2023 D3 Adult 65+
8.0
WALNUT CREEK RC/Walnut Creek TC 65AM8.0A
No California		 L BERKELEY TC 65AM8.0A
No California
james Hopkins (3.57) 6-4
6-4		 James Gay (3.66)
Carl Bass (3.57)
Match: 3.51 Rating: 3.54
03/13/2023 D2 Adult 40+
4.0
WALNUT CREEK RC/Walnut Creek TC 40AM4.0A
No California		 L ROUND HILL CC 40AM4.0A
No California
David Takeuchi (3.20) 6-3
6-1		 Bill Cox (3.76)
John Gingrich (3.86)
Match: 3.64 Rating: 3.56
03/05/2023 D2 Adult 40+
4.0
WALNUT CREEK RC/Walnut Creek TC 40AM4.0A
No California		 L ROUND HILL CC 40AM4.0A
No California
Abid Majid (3.53) 6-0
6-0		 Todd Curley (3.69)
Scott Davis (4.01)
Match: 3.38 Rating: 3.53
03/02/2023 D2 Adult 40+
4.0
WALNUT CREEK RC/Walnut Creek TC 40AM4.0A
No California		 L MORAGA CC 40AM4.0A
No California
James Tak (3.23) 6-0
6-0		 Daniel Jenkinson (3.80)
Harry Van Meines (3.63)
Match: 3.42 Rating: 3.56
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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