Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (Rating) View Advanced Player Stats
David Grayson (Larkspur, CA)
Male 		3.5 C
12/31/2022
Estimated Dynamic Rating 3.4151
6/2/2024
Projected Year End Rating ------
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3.5 Rating Meter
Rating Meter
3.0001 - 3.5000
Recent Match History Current Rating History
Current Rating Season
League/Level Total
Matches		 Win Loss Tie WPct Total
Sets		 Win Loss WPct Total
Games		 Win Loss WPct Defaults
Adult 18+ 3.5 4 3 1 0 75.0 9 6 3 66.7 67 38 29 56.7 0
Adult 40+ 3.5 7 5 2 0 71.4 17 12 5 70.6 121 78 43 64.5 0
Adult 55+ 7.0 7 7 0 0 100.0 17 14 3 82.4 119 79 40 66.4 1
Mixed 18+ 7.0 4 2 2 0 50.0 11 6 5 54.5 73 37 36 50.7 0
Total 22 17 5 0 77.3 54 38 16 70.4 380 232 148 61.1 1
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
05/25/2024 Adult 55+
7.0		 MT TAM RC 55AM7.0A
No California		 D3 Joel Sklar
(-----) 		Eric Isaacs
(-----)
Rusty Weston
(-----) 		W 6-3
6-2		 NC NC
05/25/2024 Adult 55+
7.0		 MT TAM RC 55AM7.0A
No California		 D2 Richard Gumbiner
(-----) 		Default W 6-0
6-0		 ----- -----
05/21/2024 Adult 18+
3.5		 MT TAM RC 18AM3.5A
No California		 D2 JOE HARDING
(-----) 		John Millar
(-----)
Jason Reid
(-----) 		L 6-4
6-1		 NC NC
05/19/2024 Adult 18+
3.5		 MT TAM RC 18AM3.5A
No California		 D2 JOE HARDING
(3.28) 		Noah Dehlinger
(3.16)
Brandon Dayoan
(2.60) 		W 2-6
6-3
1-0		 2.99 3.42
05/19/2024 Adult 55+
7.0		 MT TAM RC 55AM7.0A
No California		 D2 Joel Sklar
(3.40) 		Mark Dorian
(3.31)
Robert Roehrick
(3.37) 		W 6-3
6-4		 3.53 3.51
05/18/2024 Adult 55+
7.0		 MT TAM RC 55AM7.0A
No California		 D2 Richard Gumbiner
(3.39) 		Craig Quan
(3.35)
Paul Swink
(3.15) 		W 3-6
6-0
1-0		 3.44 3.49
05/11/2024 Adult 55+
7.0		 MT TAM RC 55AM7.0A
No California		 D1 John Deist
(3.53) 		Young Gong
(3.43)
Eric Rasmussen
(3.45) 		W 3-6
6-3
1-0		 3.46 3.49
05/09/2024 Adult 18+
3.5		 MT TAM RC 18AM3.5A
No California		 D1 JOE HARDING
(3.33) 		Joshua Endler
(3.28)
Rob Acker
(3.30) 		W 6-4
6-1		 3.61 3.52
04/27/2024 Adult 55+
7.0		 MT TAM RC 55AM7.0A
No California		 D3 David Stolberg
(3.09) 		Russell Wirth
(3.31)
Jon Yolles
(2.92) 		W 6-2
6-1		 3.65 3.49
04/14/2024 Adult 55+
7.0		 MT TAM RC 55AM7.0A
No California		 D1 John Deist
(3.50) 		Paolo Petrone
(3.48)
Christopher Ventris
(3.38) 		W 6-1
6-1		 3.81 3.49
04/09/2024 Adult 18+
3.5		 MT TAM RC 18AM3.5A
No California		 D1 JOE HARDING
(3.09) 		Steven Lund
(3.29)
Peter Halpern
(3.57) 		W 6-1
6-2		 3.90 3.48
04/06/2024 Adult 55+
7.0		 MT TAM RC 55AM7.0A
No California		 D2 Mitchell Wortzman
(3.49) 		David Neagle
(3.24)
Gervais Tompkin
(3.25) 		W 4-6
6-2
1-0		 3.26 3.36
03/16/2024 Adult 40+
3.5		 MT TAM RC 40AM3.5A
No California		 D3 Mitchell Wortzman
(3.49) 		Greg Sieck
(3.06)
Russ Iwanchuk
(3.23) 		W 7-5
6-2		 3.26 3.35
03/10/2024 Mixed 18+
7.0		 MT TAM RC 18MX7.0A
No California		 D2 Alison Fisker
(3.30) 		Susan Gazor
(3.28)
Michael Barker
(3.41) 		L 6-2
4-6
1-0		 3.25 3.27
03/09/2024 Adult 40+
3.5		 MT TAM RC 40AM3.5A
No California		 D2 David Kennedy
(3.41) 		Pavel Flider
(3.47)
Doke Kim
(3.27) 		L 6-4
1-6
1-0		 3.40 3.33
02/24/2024 Adult 40+
3.5		 MT TAM RC 40AM3.5A
No California		 D2 David Kennedy
(3.36) 		Matt Dveirin
(3.45)
Jean-Marc Sallenave
(3.06) 		W 6-2
6-2		 3.51 3.35
02/22/2024 Adult 40+
3.5		 MT TAM RC 40AM3.5A
No California		 D2 Mitchell Wortzman
(3.56) 		Scott Dalton
(3.42)
Jerry Labay
(3.46) 		L 6-0
1-6
1-0		 3.24 3.29
02/10/2024 Adult 40+
3.5		 MT TAM RC 40AM3.5A
No California		 D1 Peter Sanchez
(3.49) 		Damian Murray
(3.26)
Thomas Brown
(3.27) 		W 6-7
6-3
1-0		 3.24 3.30
02/03/2024 Adult 40+
3.5		 MT TAM RC 40AM3.5A
No California		 D3 Joel Sklar
(3.41) 		Tassos Papadimos
(3.01)
Jeff Loebbaka
(3.12) 		W 6-3
6-0		 3.37 3.36
01/28/2024 Mixed 18+
7.0		 MT TAM RC 18MX7.0A
No California		 D2 Mary Schattenberg
(3.39) 		Patrick Dean
(3.54)
Jessica Pascucci
(3.01) 		L 3-6
6-0
1-0		 3.10 3.28
01/27/2024 Adult 40+
3.5		 MT TAM RC 40AM3.5A
No California		 D1 Peter Sanchez
(3.50) 		Bruce Reed
(3.30)
Derrick Wong
(3.19) 		W 6-1
6-2		 3.48 3.35
01/14/2024 Mixed 18+
7.0		 MT TAM RC 18MX7.0A
No California		 D2 Mary Vogt
(3.43) 		Ben Nelson
(-----)
Elena Guryeva
(3.00) 		W 4-6
6-2
1-0		 S 3.31
01/08/2024 Mixed 18+
7.0		 MT TAM RC 18MX7.0A
No California		 D2 Alison Fisker
(-----) 		Suzanne Kawahara
(3.24)
Stacy Nimmo
(3.13) 		W 6-3
6-4		 S 3.31
05/25/2024 D3 Adult 55+
7.0
MT TAM RC 55AM7.0A
No California		 W GOLDMAN TC 55AM7.0A
No California
Joel Sklar (-----) 6-3
6-2		 Eric Isaacs (-----)
Rusty Weston (-----)
Match: NC Rating: NC
05/25/2024 D2 Adult 55+
7.0
MT TAM RC 55AM7.0A
No California		 W MARIN TC 55AM7.0A
No California
Richard Gumbiner (-----) 6-0
6-0		 Default
Match: ----- Rating: -----
05/21/2024 D2 Adult 18+
3.5
MT TAM RC 18AM3.5A
No California		 L BAY CLUB ROSS VALLEY 18AM3.5A
No California
JOE HARDING (-----) 6-4
6-1		 John Millar (-----)
Jason Reid (-----)
Match: NC Rating: NC
05/19/2024 D2 Adult 18+
3.5
MT TAM RC 18AM3.5A
No California		 W ROLLING HILLS 18AM3.5A
No California
JOE HARDING (3.28) 2-6
6-3
1-0		 Noah Dehlinger (3.16)
Brandon Dayoan (2.60)
Match: 2.99 Rating: 3.42
05/19/2024 D2 Adult 55+
7.0
MT TAM RC 55AM7.0A
No California		 W NOVATO TC/PIONEER PK 55AM7.0A
No California
Joel Sklar (3.40) 6-3
6-4		 Mark Dorian (3.31)
Robert Roehrick (3.37)
Match: 3.53 Rating: 3.51
05/18/2024 D2 Adult 55+
7.0
MT TAM RC 55AM7.0A
No California		 W BAY CLUB ROSS VALLEY 55AM7.0A
No California
Richard Gumbiner (3.39) 3-6
6-0
1-0		 Craig Quan (3.35)
Paul Swink (3.15)
Match: 3.44 Rating: 3.49
05/11/2024 D1 Adult 55+
7.0
MT TAM RC 55AM7.0A
No California		 W GOLDMAN TC 55AM7.0A
No California
John Deist (3.53) 3-6
6-3
1-0		 Young Gong (3.43)
Eric Rasmussen (3.45)
Match: 3.46 Rating: 3.49
05/09/2024 D1 Adult 18+
3.5
MT TAM RC 18AM3.5A
No California		 W TIBURON PEN C 18AM3.5A
No California
JOE HARDING (3.33) 6-4
6-1		 Joshua Endler (3.28)
Rob Acker (3.30)
Match: 3.61 Rating: 3.52
04/27/2024 D3 Adult 55+
7.0
MT TAM RC 55AM7.0A
No California		 W SCOTT VALLEY 55AM7.0A
No California
David Stolberg (3.09) 6-2
6-1		 Russell Wirth (3.31)
Jon Yolles (2.92)
Match: 3.65 Rating: 3.49
04/14/2024 D1 Adult 55+
7.0
MT TAM RC 55AM7.0A
No California		 W HARBOR PT 55AM7.0A
No California
John Deist (3.50) 6-1
6-1		 Paolo Petrone (3.48)
Christopher Ventris (3.38)
Match: 3.81 Rating: 3.49
04/09/2024 D1 Adult 18+
3.5
MT TAM RC 18AM3.5A
No California		 W ROLLING HILLS 18AM3.5A
No California
JOE HARDING (3.09) 6-1
6-2		 Steven Lund (3.29)
Peter Halpern (3.57)
Match: 3.90 Rating: 3.48
04/06/2024 D2 Adult 55+
7.0
MT TAM RC 55AM7.0A
No California		 W MARIN TC 55AM7.0A
No California
Mitchell Wortzman (3.49) 4-6
6-2
1-0		 David Neagle (3.24)
Gervais Tompkin (3.25)
Match: 3.26 Rating: 3.36
03/16/2024 D3 Adult 40+
3.5
MT TAM RC 40AM3.5A
No California		 W BAY CLUB ROSS VALLEY 40AM3.5A
No California
Mitchell Wortzman (3.49) 7-5
6-2		 Greg Sieck (3.06)
Russ Iwanchuk (3.23)
Match: 3.26 Rating: 3.35
03/10/2024 D2 Mixed 18+
7.0
MT TAM RC 18MX7.0A
No California		 L BELVEDERE TC 18MX7.0A
No California
Alison Fisker (3.30) 6-2
4-6
1-0		 Susan Gazor (3.28)
Michael Barker (3.41)
Match: 3.25 Rating: 3.27
03/09/2024 D2 Adult 40+
3.5
MT TAM RC 40AM3.5A
No California		 L MARIN TC 40AM3.5A
No California
David Kennedy (3.41) 6-4
1-6
1-0		 Pavel Flider (3.47)
Doke Kim (3.27)
Match: 3.40 Rating: 3.33
02/24/2024 D2 Adult 40+
3.5
MT TAM RC 40AM3.5A
No California		 W BAY CLUB ROSS VALLEY 40AM3.5A
No California
David Kennedy (3.36) 6-2
6-2		 Matt Dveirin (3.45)
Jean-Marc Sallenave (3.06)
Match: 3.51 Rating: 3.35
02/22/2024 D2 Adult 40+
3.5
MT TAM RC 40AM3.5A
No California		 L MILL VALLEY 40AM3.5A
No California
Mitchell Wortzman (3.56) 6-0
1-6
1-0		 Scott Dalton (3.42)
Jerry Labay (3.46)
Match: 3.24 Rating: 3.29
02/10/2024 D1 Adult 40+
3.5
MT TAM RC 40AM3.5A
No California		 W HARBOR PT 40AM3.5A
No California
Peter Sanchez (3.49) 6-7
6-3
1-0		 Damian Murray (3.26)
Thomas Brown (3.27)
Match: 3.24 Rating: 3.30
02/03/2024 D3 Adult 40+
3.5
MT TAM RC 40AM3.5A
No California		 W MARIN TC 40AM3.5A
No California
Joel Sklar (3.41) 6-3
6-0		 Tassos Papadimos (3.01)
Jeff Loebbaka (3.12)
Match: 3.37 Rating: 3.36
01/28/2024 D2 Mixed 18+
7.0
MT TAM RC 18MX7.0A
No California		 L MARIN CC 18MX7.0A
No California
Mary Schattenberg (3.39) 3-6
6-0
1-0		 Patrick Dean (3.54)
Jessica Pascucci (3.01)
Match: 3.10 Rating: 3.28
01/27/2024 D1 Adult 40+
3.5
MT TAM RC 40AM3.5A
No California		 W SCOTT VALLEY 40AM3.5A
No California
Peter Sanchez (3.50) 6-1
6-2		 Bruce Reed (3.30)
Derrick Wong (3.19)
Match: 3.48 Rating: 3.35
01/14/2024 D2 Mixed 18+
7.0
MT TAM RC 18MX7.0A
No California		 W ROLLING HILLS 18MX7.0A
No California
Mary Vogt (3.43) 4-6
6-2
1-0		 Ben Nelson (-----)
Elena Guryeva (3.00)
Match: S Rating: 3.31
01/08/2024 D2 Mixed 18+
7.0
MT TAM RC 18MX7.0A
No California		 W MARIN TC 18MX7.0A
No California
Alison Fisker (-----) 6-3
6-4		 Suzanne Kawahara (3.24)
Stacy Nimmo (3.13)
Match: S Rating: 3.31
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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