Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (2020) View Advanced Player Stats
Jonathan Lefferts (San Anselmo, CA)
Male 		4.5 C
12/31/2024
Estimated Dynamic Rating 4.1486
12/12/2024
Projected Year End Rating ------
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4.5 Rating Meter
Rating Meter
4.0001 - 4.5000
Recent Match History Current Rating History
2020 Overall Season
League/Level Total
Matches		 Win Loss Tie WPct Total
Sets		 Win Loss WPct Total
Games		 Win Loss WPct Defaults
Adult 40+ 4.5 4 3 1 0 75.0 9 6 3 66.7 76 40 36 52.6 0
Mixed 40+ 9.0 3 2 1 0 66.7 6 4 2 66.7 55 32 23 58.2 0
Total 7 5 2 0 71.4 15 10 5 66.7 131 72 59 55.0 0
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
03/08/2020 Mixed 40+
9.0
Sectionals		 PIONEER PK 40MX9.0A
No California		 D3 Molly Neal
(4.41) 		Brian Heimbecker
(4.84)
Lori Cruz-Spray
(3.92) 		L 6-4
6-4		 4.23 4.27
03/06/2020 Mixed 40+
9.0
Sectionals		 PIONEER PK 40MX9.0A
No California		 D1 Molly Neal
(4.42) 		Michael Bedard
(4.54)
Sunye Vuong
(3.76) 		W 6-4
6-2		 4.27 4.29
02/29/2020 Adult 40+
4.5		 MARIN TC 40AM4.5+A
No California		 D1 Daniel Carlson
(4.26) 		Timothy Barlow
(4.08)
Blain Wong
(4.01) 		W 7-5
6-1		 4.29 4.29
02/01/2020 Mixed 40+
9.0		 PIONEER PK 40MX9.0A
No California		 D1 Molly Neal
(4.38) 		Jennifer Holmes
(3.69)
Jeffery Birkenseer
(4.15) 		W 6-1
6-4		 4.15 4.27
01/25/2020 Adult 40+
4.5		 MARIN TC 40AM4.5+A
No California		 D1 Jim Jackson
(4.28) 		Jeff Babikian
(4.35)
Dan Hiddleson
(4.89) 		L 6-4
6-2		 4.42 4.31
01/15/2020 Adult 40+
4.5		 MARIN TC 40AM4.5+A
No California		 D1 Mike Downs
(4.44) 		Jay Marx
(4.09)
jeff johnson
(4.07) 		W 6-3
6-3		 4.21 4.27
01/12/2020 Adult 40+
4.5		 MARIN TC 40AM4.5+A
No California		 D1 Mike Downs
(4.44) 		David Zamarripa
(4.36)
Thomas Hubert
(-----) 		W 1-6
7-6
1-0		 S 4.29
03/08/2020 D3 Mixed 40+
9.0
Sectionals
PIONEER PK 40MX9.0A
No California		 L SARATOGA CC 40MX9.0A
No California
Molly Neal (4.41) 6-4
6-4		 Brian Heimbecker (4.84)
Lori Cruz-Spray (3.92)
Match: 4.23 Rating: 4.27
03/06/2020 D1 Mixed 40+
9.0
Sectionals
PIONEER PK 40MX9.0A
No California		 W BAY CLUB BROADWAY TENNIS 40MX9.0A
No California
Molly Neal (4.42) 6-4
6-2		 Michael Bedard (4.54)
Sunye Vuong (3.76)
Match: 4.27 Rating: 4.29
02/29/2020 D1 Adult 40+
4.5
MARIN TC 40AM4.5+A
No California		 W ROHNERT PK TC/MAGNOLIA/M PK 40AM4.5+A
No California
Daniel Carlson (4.26) 7-5
6-1		 Timothy Barlow (4.08)
Blain Wong (4.01)
Match: 4.29 Rating: 4.29
02/01/2020 D1 Mixed 40+
9.0
PIONEER PK 40MX9.0A
No California		 W MARIN TC 40MX9.0A
No California
Molly Neal (4.38) 6-1
6-4		 Jennifer Holmes (3.69)
Jeffery Birkenseer (4.15)
Match: 4.15 Rating: 4.27
01/25/2020 D1 Adult 40+
4.5
MARIN TC 40AM4.5+A
No California		 L TIBURON PEN C 40AM4.5+A
No California
Jim Jackson (4.28) 6-4
6-2		 Jeff Babikian (4.35)
Dan Hiddleson (4.89)
Match: 4.42 Rating: 4.31
01/15/2020 D1 Adult 40+
4.5
MARIN TC 40AM4.5+A
No California		 W MARINWOOD COMM CTR 40AM4.5+A
No California
Mike Downs (4.44) 6-3
6-3		 Jay Marx (4.09)
jeff johnson (4.07)
Match: 4.21 Rating: 4.27
01/12/2020 D1 Adult 40+
4.5
MARIN TC 40AM4.5+A
No California		 W ROHNERT PK TC/MAGNOLIA/M PK 40AM4.5+A
No California
Mike Downs (4.44) 1-6
7-6
1-0		 David Zamarripa (4.36)
Thomas Hubert (-----)
Match: S Rating: 4.29
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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