Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (2018) View Advanced Player Stats
Mark Kowal (Glen Allen, VA)
Male 		4.0 C
12/31/2022
Estimated Dynamic Rating 3.5551
6/2/2024
Projected Year End Rating ------
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4.0 Rating Meter
Rating Meter
3.5001 - 4.0000
Recent Match History Current Rating History
2018 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 7 4 3 0 57.1 16 9 7 56.3 131 67 64 51.1 0
Adult 40+ 4.0 8 6 2 0 75.0 18 13 5 72.2 134 82 52 61.2 0
Adult 55+ 8.0 6 5 1 0 83.3 15 11 4 73.3 109 67 42 61.5 0
Total 21 15 6 0 71.4 49 33 16 67.3 374 216 158 57.8 0
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
08/16/2018 Adult 55+
8.0		 1 Burkwood Shifflett
Mid-Atlantic		 D2 Joe Basil
(3.70) 		Thomas Wood
(3.43)
Henry Wood
(4.10) 		W 3-6
6-2
1-0		 3.85 3.80
08/09/2018 Adult 55+
8.0		 1 Burkwood Shifflett
Mid-Atlantic		 D1 Jeff Shifflett
(3.77) 		Thomas Ager
(3.92)
Sven Sjogren
(3.68) 		L 6-2
6-7
1-0		 3.70 3.76
08/06/2018 Adult 40+
4.0		 10 Dominion Mainwaring
Mid-Atlantic		 D3 Joe Basil
(3.70) 		John Rison
(3.38)
Steven Kent
(3.59) 		W 6-3
6-1		 3.83 3.77
08/05/2018 Adult 40+
4.0		 10 Dominion Mainwaring
Mid-Atlantic		 D2 Reese Puckett
(3.65) 		Marc Oosterhuis
(3.74)
Anant Singh
(3.69) 		W 6-3
6-3		 3.96 3.81
08/02/2018 Adult 55+
8.0		 1 Burkwood Shifflett
Mid-Atlantic		 D3 Scott Mainwaring
(3.88) 		Larry Jones
(3.46)
Karl Jones
(3.69) 		W 6-4
6-2		 3.68 3.76
07/29/2018 Adult 40+
4.0		 10 Dominion Mainwaring
Mid-Atlantic		 S2 Clem Ulrichs
(3.31) 		W 6-3
2-6
1-0		 3.31 3.69
07/26/2018 Adult 55+
8.0		 1 Burkwood Shifflett
Mid-Atlantic		 D3 Scott Mainwaring
(3.78) 		Reginald Kruszewski
(3.64)
Timothy Vaden
(3.70) 		W 6-2
6-3		 3.93 3.83
07/19/2018 Adult 55+
8.0		 1 Burkwood Shifflett
Mid-Atlantic		 D1 Jeff Shifflett
(3.77) 		Robert Steele
(3.90)
Mark Coates
(3.74) 		W 5-7
6-2
1-0		 3.91 3.82
07/15/2018 Adult 40+
4.0		 10 Dominion Mainwaring
Mid-Atlantic		 D1 Scott Sorkin
(3.97) 		Mahesh Sukumaran
(3.63)
Stephen Herfst
(3.81) 		W 6-0
7-6		 3.85 3.79
07/13/2018 Adult 40+
4.0		 10 Dominion Mainwaring
Mid-Atlantic		 D1 Scott Sorkin
(3.90) 		Thomas Hughes
(3.74)
Jeff Richman
(3.76) 		W 6-3
6-2		 3.94 3.79
07/13/2018 Adult 55+
8.0		 1 Burkwood Shifflett
Mid-Atlantic		 D1 Jeff Shifflett
(3.70) 		Bryan Carr
(3.58)
Alex Evans
(3.69) 		W 6-0
6-1		 4.09 3.80
06/24/2018 Adult 40+
4.0		 10 Dominion Mainwaring
Mid-Atlantic		 D3 tomoyuki suzuki
(3.71) 		Matt Stoss
(3.58)
Gregory Terry
(3.69) 		W 6-1
6-2		 3.94 3.75
06/17/2018 Adult 40+
4.0		 10 Dominion Mainwaring
Mid-Atlantic		 S1 John Reifsnider
(3.67) 		L 6-2
6-3		 3.43 3.66
06/16/2018 Adult 18+
4.0		 9 Dominion Kowal
Mid-Atlantic		 D3 Prabir Purohit
(4.05) 		Jason Eakes
(3.59)
John Evko
(3.76) 		W 6-3
7-5		 3.63 3.70
06/10/2018 Adult 40+
4.0		 10 Dominion Mainwaring
Mid-Atlantic		 S2 Terrance Milo
(3.58) 		L 6-1
0-6
1-0		 3.58 3.70
05/27/2018 Adult 18+
4.0		 9 Dominion Kowal
Mid-Atlantic		 D1 Scott Sorkin
(3.87) 		Cliff Heller
(3.83)
Jeffrey Albright
(3.71) 		W 6-2
6-1		 4.00 3.80
05/20/2018 Adult 18+
4.0		 9 Dominion Kowal
Mid-Atlantic		 S2 Chris Gerecke
(3.43) 		W 6-4
1-6
1-0		 3.37 3.66
05/06/2018 Adult 18+
4.0		 9 Dominion Kowal
Mid-Atlantic		 D2 Scott Sorkin
(3.83) 		Karl Jones
(3.74)
William Bey
(3.55) 		W 6-2
6-4		 3.80 3.77
04/29/2018 Adult 18+
4.0		 9 Dominion Kowal
Mid-Atlantic		 D1 Prabir Purohit
(4.07) 		Tommy Bader
(3.72)
Stewart Hargrove
(3.86) 		L 5-7
7-6
1-0		 3.63 3.75
04/15/2018 Adult 18+
4.0		 9 Dominion Kowal
Mid-Atlantic		 D2 Paul DeLuca
(3.20) 		Dwayne Tasin
(3.39)
Ronald Hatch
(3.59) 		L 6-2
6-3		 3.55 3.74
04/08/2018 Adult 18+
4.0		 9 Dominion Kowal
Mid-Atlantic		 D2 Joe Basil
(3.71) 		Patrick Sturdivant
(3.82)
Joseph Shutt
(3.91) 		L 6-2
6-2		 3.64 3.79
08/16/2018 D2 Adult 55+
8.0
1 Burkwood Shifflett
Mid-Atlantic		 W 8 Raintree Campbell 8.0
Mid-Atlantic
Joe Basil (3.70) 3-6
6-2
1-0		 Thomas Wood (3.43)
Henry Wood (4.10)
Match: 3.85 Rating: 3.80
08/09/2018 D1 Adult 55+
8.0
1 Burkwood Shifflett
Mid-Atlantic		 L 6 Salisbury Riegel
Mid-Atlantic
Jeff Shifflett (3.77) 6-2
6-7
1-0		 Thomas Ager (3.92)
Sven Sjogren (3.68)
Match: 3.70 Rating: 3.76
08/06/2018 D3 Adult 40+
4.0
10 Dominion Mainwaring
Mid-Atlantic		 W 4 ACAC Hollomon
Mid-Atlantic
Joe Basil (3.70) 6-3
6-1		 John Rison (3.38)
Steven Kent (3.59)
Match: 3.83 Rating: 3.77
08/05/2018 D2 Adult 40+
4.0
10 Dominion Mainwaring
Mid-Atlantic		 W 8 ACAC Nelson
Mid-Atlantic
Reese Puckett (3.65) 6-3
6-3		 Marc Oosterhuis (3.74)
Anant Singh (3.69)
Match: 3.96 Rating: 3.81
08/02/2018 D3 Adult 55+
8.0
1 Burkwood Shifflett
Mid-Atlantic		 W 4 MRTC Thornton
Mid-Atlantic
Scott Mainwaring (3.88) 6-4
6-2		 Larry Jones (3.46)
Karl Jones (3.69)
Match: 3.68 Rating: 3.76
07/29/2018 S2 Adult 40+
4.0
10 Dominion Mainwaring
Mid-Atlantic		 W 6 Ridge Top Chiffriller
Mid-Atlantic
6-3
2-6
1-0		 Clem Ulrichs (3.31)
Match: 3.31 Rating: 3.69
07/26/2018 D3 Adult 55+
8.0
1 Burkwood Shifflett
Mid-Atlantic		 W 2 ACAC Forbes
Mid-Atlantic
Scott Mainwaring (3.78) 6-2
6-3		 Reginald Kruszewski (3.64)
Timothy Vaden (3.70)
Match: 3.93 Rating: 3.83
07/19/2018 D1 Adult 55+
8.0
1 Burkwood Shifflett
Mid-Atlantic		 W 9 Willow Oaks Mathews
Mid-Atlantic
Jeff Shifflett (3.77) 5-7
6-2
1-0		 Robert Steele (3.90)
Mark Coates (3.74)
Match: 3.91 Rating: 3.82
07/15/2018 D1 Adult 40+
4.0
10 Dominion Mainwaring
Mid-Atlantic		 W 2 40 Richmond 4.0 Tennisbums
Mid-Atlantic
Scott Sorkin (3.97) 6-0
7-6		 Mahesh Sukumaran (3.63)
Stephen Herfst (3.81)
Match: 3.85 Rating: 3.79
07/13/2018 D1 Adult 40+
4.0
10 Dominion Mainwaring
Mid-Atlantic		 W 1 James River Surge Stephens 4.0
Mid-Atlantic
Scott Sorkin (3.90) 6-3
6-2		 Thomas Hughes (3.74)
Jeff Richman (3.76)
Match: 3.94 Rating: 3.79
07/13/2018 D1 Adult 55+
8.0
1 Burkwood Shifflett
Mid-Atlantic		 W 7 Westwood Highfill
Mid-Atlantic
Jeff Shifflett (3.70) 6-0
6-1		 Bryan Carr (3.58)
Alex Evans (3.69)
Match: 4.09 Rating: 3.80
06/24/2018 D3 Adult 40+
4.0
10 Dominion Mainwaring
Mid-Atlantic		 W 7 Woodlake Kroos
Mid-Atlantic
tomoyuki suzuki (3.71) 6-1
6-2		 Matt Stoss (3.58)
Gregory Terry (3.69)
Match: 3.94 Rating: 3.75
06/17/2018 S1 Adult 40+
4.0
10 Dominion Mainwaring
Mid-Atlantic		 L 5 Southampton Hatch
Mid-Atlantic
6-2
6-3		 John Reifsnider (3.67)
Match: 3.43 Rating: 3.66
06/16/2018 D3 Adult 18+
4.0
9 Dominion Kowal
Mid-Atlantic		 W 7 Belmont Aging Guns Barnes
Mid-Atlantic
Prabir Purohit (4.05) 6-3
7-5		 Jason Eakes (3.59)
John Evko (3.76)
Match: 3.63 Rating: 3.70
06/10/2018 S2 Adult 40+
4.0
10 Dominion Mainwaring
Mid-Atlantic		 L 3 MRTC Finn (Battery Park)
Mid-Atlantic
6-1
0-6
1-0		 Terrance Milo (3.58)
Match: 3.58 Rating: 3.70
05/27/2018 D1 Adult 18+
4.0
9 Dominion Kowal
Mid-Atlantic		 W 3 ACAC Pfeiffer Kick Serves
Mid-Atlantic
Scott Sorkin (3.87) 6-2
6-1		 Cliff Heller (3.83)
Jeffrey Albright (3.71)
Match: 4.00 Rating: 3.80
05/20/2018 S2 Adult 18+
4.0
9 Dominion Kowal
Mid-Atlantic		 W 5 Avalon George
Mid-Atlantic
6-4
1-6
1-0		 Chris Gerecke (3.43)
Match: 3.37 Rating: 3.66
05/06/2018 D2 Adult 18+
4.0
9 Dominion Kowal
Mid-Atlantic		 W 1 MRTC Finn (Battery Park)
Mid-Atlantic
Scott Sorkin (3.83) 6-2
6-4		 Karl Jones (3.74)
William Bey (3.55)
Match: 3.80 Rating: 3.77
04/29/2018 D1 Adult 18+
4.0
9 Dominion Kowal
Mid-Atlantic		 L 8 ACAC Gruhl Kickin' Aces
Mid-Atlantic
Prabir Purohit (4.07) 5-7
7-6
1-0		 Tommy Bader (3.72)
Stewart Hargrove (3.86)
Match: 3.63 Rating: 3.75
04/15/2018 D2 Adult 18+
4.0
9 Dominion Kowal
Mid-Atlantic		 L 4 Southampton Hatch
Mid-Atlantic
Paul DeLuca (3.20) 6-2
6-3		 Dwayne Tasin (3.39)
Ronald Hatch (3.59)
Match: 3.55 Rating: 3.74
04/08/2018 D2 Adult 18+
4.0
9 Dominion Kowal
Mid-Atlantic		 L 2 Westwood Sturdivant
Mid-Atlantic
Joe Basil (3.71) 6-2
6-2		 Patrick Sturdivant (3.82)
Joseph Shutt (3.91)
Match: 3.64 Rating: 3.79
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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