Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (2023) View Advanced Player Stats
John Stewart (Belvedere Tiburon, CA)
Male 		3.5 C
12/31/2023
Estimated Dynamic Rating 3.2560
8/9/2024
Projected Year End Rating ------
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3.5 Rating Meter
Rating Meter
3.0001 - 3.5000
Recent Match History Current Rating History
2023 Overall Season [Doubles]
League/Level Total
Matches		 Win Loss Tie WPct Total
Sets		 Win Loss WPct Total
Games		 Win Loss WPct Defaults
Adult 18+ 3.5 4 1 3 0 25.0 9 3 6 33.3 77 34 43 44.2 0
Adult 40+ 3.5 5 2 3 0 40.0 12 5 7 41.7 93 45 48 48.4 0
Combo 7.5 3 1 2 0 33.3 7 3 4 42.9 59 27 32 45.8 0
Total 12 4 8 0 33.3 28 11 17 39.3 229 106 123 46.3 0
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
09/24/2023 Combo
7.5		 TIBURON PEN C CM7.5A
No California		 D1 David Sherry
(3.62) 		Tony Gambardella
(3.76)
Christopher Skelton
(3.48) 		L 6-3
6-1		 3.17 -----
09/16/2023 Combo
7.5		 TIBURON PEN C CM7.5A
No California		 D1 David Sherry
(3.62) 		Jeffrey Thornton
(3.87)
Derek Weller
(3.10) 		L 4-6
7-5
1-0		 3.30 -----
09/02/2023 Combo
7.5		 TIBURON PEN C CM7.5A
No California		 D3 David Sherry
(3.62) 		Wesley MacLaggan
(3.20)
Derrick Wong
(3.15) 		W 6-4
6-4		 3.11 -----
07/13/2023 Adult 18+
3.5
League		 TIBURON PEN C 18AM3.5A
No California		 D1 Rob Acker
(3.17) 		Charlie Norman
(3.57)
Kenneth White
(3.48) 		L 6-2
6-0		 3.22 3.25
06/10/2023 Adult 18+
3.5		 TIBURON PEN C 18AM3.5A
No California		 D1 Rob Acker
(3.09) 		Chris Beard
(3.37)
Roland Davantes
(3.49) 		W 7-6
6-3		 3.62 3.32
05/31/2023 Adult 18+
3.5		 TIBURON PEN C 18AM3.5A
No California		 D1 Andy Pham
(2.90) 		Paul Rimas
(3.45)
Nico Safrit
(3.32) 		L 7-5
6-3		 S 3.27
05/21/2023 Adult 18+
3.5		 TIBURON PEN C 18AM3.5A
No California		 D2 Joshua Endler
(3.18) 		Mark Britschgi
(3.47)
Morgan Lam
(3.40) 		L 1-6
7-5
1-0		 3.50 3.27
04/07/2023 Adult 40+
3.5
Flight		 TIBURON PEN C 40AM3.5B
No California		 D3 Rob Acker
(3.06) 		Sebastian Rouas
(3.28)
Mitchell Wortzman
(3.42) 		L 6-2
6-2		 3.13 3.19
03/23/2023 Adult 40+
3.5
Flight		 TIBURON PEN C 40AM3.5B
No California		 D2 John Parsons
(3.11) 		Patrick Ryan
(3.29)
Adrian Fadrhonc
(3.05) 		L 7-6
2-6
1-0		 3.26 3.21
03/16/2023 Adult 40+
3.5		 TIBURON PEN C 40AM3.5B
No California		 D3 Huntly Gordon
(3.26) 		Stevens Manning
(3.08)
John Ringgenberg
(2.94) 		W 6-2
6-2		 S 3.19
02/12/2023 Adult 40+
3.5		 TIBURON PEN C 40AM3.5B
No California		 D2 David Petrini
(3.09) 		John Ringgenberg
(2.99)
Brian Kaplan
(3.39) 		L 6-4
6-4		 3.14 3.19
01/20/2023 Adult 40+
3.5		 TIBURON PEN C 40AM3.5B
No California		 D2 Rob Acker
(3.00) 		Bruno Luiz Ley Santos
(3.11)
John Ringgenberg
(2.94) 		W 6-4
2-6
1-0		 3.10 3.20
09/24/2023 D1 Combo
7.5
TIBURON PEN C CM7.5A
No California		 L RAFAEL RC CM7.5A
No California
David Sherry (3.62) 6-3
6-1		 Tony Gambardella (3.76)
Christopher Skelton (3.48)
Match: 3.17 Rating: -----
09/16/2023 D1 Combo
7.5
TIBURON PEN C CM7.5A
No California		 L RAFAEL RC CM7.5A
No California
David Sherry (3.62) 4-6
7-5
1-0		 Jeffrey Thornton (3.87)
Derek Weller (3.10)
Match: 3.30 Rating: -----
09/02/2023 D3 Combo
7.5
TIBURON PEN C CM7.5A
No California		 W SCOTT VALLEY CM7.5A
No California
David Sherry (3.62) 6-4
6-4		 Wesley MacLaggan (3.20)
Derrick Wong (3.15)
Match: 3.11 Rating: -----
07/13/2023 D1 Adult 18+
3.5
League
TIBURON PEN C 18AM3.5A
No California		 L MT TAM RC 18AM3.5A
No California
Rob Acker (3.17) 6-2
6-0		 Charlie Norman (3.57)
Kenneth White (3.48)
Match: 3.22 Rating: 3.25
06/10/2023 D1 Adult 18+
3.5
TIBURON PEN C 18AM3.5A
No California		 W RAFAEL RC 18AM3.5A
No California
Rob Acker (3.09) 7-6
6-3		 Chris Beard (3.37)
Roland Davantes (3.49)
Match: 3.62 Rating: 3.32
05/31/2023 D1 Adult 18+
3.5
TIBURON PEN C 18AM3.5A
No California		 L MILL VALLEY 18AM3.5A
No California
Andy Pham (2.90) 7-5
6-3		 Paul Rimas (3.45)
Nico Safrit (3.32)
Match: S Rating: 3.27
05/21/2023 D2 Adult 18+
3.5
TIBURON PEN C 18AM3.5A
No California		 L BAY CLUB ROSS VALLEY 18AM3.5A
No California
Joshua Endler (3.18) 1-6
7-5
1-0		 Mark Britschgi (3.47)
Morgan Lam (3.40)
Match: 3.50 Rating: 3.27
04/07/2023 D3 Adult 40+
3.5
Flight
TIBURON PEN C 40AM3.5B
No California		 L MT TAM RC 40AM3.5A
No California
Rob Acker (3.06) 6-2
6-2		 Sebastian Rouas (3.28)
Mitchell Wortzman (3.42)
Match: 3.13 Rating: 3.19
03/23/2023 D2 Adult 40+
3.5
Flight
TIBURON PEN C 40AM3.5B
No California		 L MILL VALLEY 40AM3.5A
No California
John Parsons (3.11) 7-6
2-6
1-0		 Patrick Ryan (3.29)
Adrian Fadrhonc (3.05)
Match: 3.26 Rating: 3.21
03/16/2023 D3 Adult 40+
3.5
TIBURON PEN C 40AM3.5B
No California		 W NOVATO TC/PIONEER PK 40AM3.5A
No California
Huntly Gordon (3.26) 6-2
6-2		 Stevens Manning (3.08)
John Ringgenberg (2.94)
Match: S Rating: 3.19
02/12/2023 D2 Adult 40+
3.5
TIBURON PEN C 40AM3.5B
No California		 L NOVATO TC/PIONEER PK 40AM3.5A
No California
David Petrini (3.09) 6-4
6-4		 John Ringgenberg (2.99)
Brian Kaplan (3.39)
Match: 3.14 Rating: 3.19
01/20/2023 D2 Adult 40+
3.5
TIBURON PEN C 40AM3.5B
No California		 W NOVATO TC/PIONEER PK 40AM3.5A
No California
Rob Acker (3.00) 6-4
2-6
1-0		 Bruno Luiz Ley Santos (3.11)
John Ringgenberg (2.94)
Match: 3.10 Rating: 3.20
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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