Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (2020) View Advanced Player Stats
Mark Guo (Columbia, MD)
Male 		4.0 C
12/31/2024
Estimated Dynamic Rating 3.6920
3/27/2025
Projected Year End Rating ------
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4.0 Rating Meter
Rating Meter
3.5001 - 4.0000
Recent Match History Current Rating History
2020 Overall Rating Season
League/Level Total
Matches		 Win Loss Tie WPct Total
Sets		 Win Loss WPct Total
Games		 Win Loss WPct Defaults
Adult 18+ 4.0 6 4 2 0 66.7 16 10 6 62.5 121 68 53 56.2 0
Adult 18+ 4.5 11 0 11 0 0.0 24 2 22 8.3 191 64 127 33.5 1
Adult 40+ 4.0 7 4 3 0 57.1 17 8 9 47.1 129 59 70 45.7 0
Total 24 8 16 0 33.3 57 20 37 35.1 441 191 250 43.3 1
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
08/21/2021 Adult 40+
4.0
Sectionals		 Leitzer - Kerr
Mid-Atlantic		 D3 Jason Ditto
(3.71) 		Amir Moinfar
(3.78)
Anthony Pappas
(3.76) 		L 6-4
6-0		 3.44 3.59
08/21/2021 Adult 40+
4.0
Sectionals		 Leitzer - Kerr
Mid-Atlantic		 S1 Joseph Benderson
(3.69) 		L 6-3
6-3		 3.49 3.62
08/20/2021 Adult 40+
4.0
Sectionals		 Leitzer - Kerr
Mid-Atlantic		 D2 Mark Muneses
(3.91) 		Morgan Ames
(3.70)
Dave Chirico
(3.68) 		W 6-3
3-6
1-0		 3.59 3.64
07/31/2021 Adult 18+
4.0
Regionals		 Crawley
Mid-Atlantic		 D2 Nhat Ngo
(3.73) 		Joseph Marino
(3.69)
Marcus Moore
(3.53) 		L 6-3
1-6
1-0		 3.62 3.66
07/01/2021 Adult 40+
4.0		 Leitzer - Kerr
Mid-Atlantic		 D1 John Ciccarone
(3.77) 		Joshua Sadler
(3.41)
John Casey
(3.87) 		W 6-4
6-2		 3.77 3.69
06/23/2021 Adult 40+
4.0		 Leitzer - Kerr
Mid-Atlantic		 S1 Erik Jones
(3.54) 		L 6-3
7-6		 3.45 3.64
06/19/2021 Adult 40+
4.0		 Leitzer - Kerr
Mid-Atlantic		 D1 Jason Ditto
(3.74) 		John Casey
(3.87)
Erik Jones
(3.54) 		W 2-6
6-4
1-0		 3.63 3.68
06/15/2021 Adult 18+
4.5		 Killer Gerbils 4.5 18+
Mid-Atlantic		 D2 Vince Sbarra
(-----) 		Default W 6-0
6-0		 ----- -----
06/13/2021 Adult 40+
4.0		 Leitzer - Kerr
Mid-Atlantic		 S1 Walter Parrish
(3.34) 		W 2-6
6-2
1-0		 3.37 3.65
06/08/2021 Adult 18+
4.5		 Killer Gerbils 4.5 18+
Mid-Atlantic		 D3 Steve Chan
(3.70) 		Rohan Bhale
(4.26)
Matt Ross
(4.08) 		L 6-4
6-3		 3.97 3.76
06/05/2021 Adult 18+
4.5		 Killer Gerbils 4.5 18+
Mid-Atlantic		 D2 Mikhail Laryukhin
(3.86) 		Michael McMahon
(3.92)
Alex Bollman
(4.02) 		L 6-1
6-3		 3.60 3.67
05/25/2021 Adult 18+
4.0		 Crawley
Mid-Atlantic		 D1 Alexander Gerson
(3.82) 		Steve Newcomer
(3.94)
Jack Lavinder
(3.60) 		L 7-5
2-6
1-0		 3.73 3.70
05/16/2021 Adult 18+
4.5		 Killer Gerbils 4.5 18+
Mid-Atlantic		 D3 James Appel
(3.42) 		Justin Cady
(3.89)
Dwayne Herndon
(3.72) 		L 6-0
6-4		 3.65 3.69
05/15/2021 Adult 18+
4.0		 Crawley
Mid-Atlantic		 D2 Alexander Gerson
(3.78) 		Thomas Chappell
(3.61)
Andre Taggart
(3.53) 		W 6-4
6-4		 3.63 3.69
05/10/2021 Adult 18+
4.0		 Crawley
Mid-Atlantic		 D3 Fatih Selekler
(3.67) 		Christopher Bell
(3.01)
Keith Patrick
(3.67) 		W 7-5
4-6
1-0		 S 3.71
05/04/2021 Adult 18+
4.5		 Killer Gerbils 4.5 18+
Mid-Atlantic		 D3 Steve Chan
(3.69) 		Bruce Fulton
(3.90)
Brian Wee
(4.01) 		L 6-2
6-3		 3.72 3.71
05/02/2021 Adult 18+
4.5		 Killer Gerbils 4.5 18+
Mid-Atlantic		 D3 Alexander Gerson
(3.74) 		Derek Ireland
(3.97)
Byron Levy
(4.11) 		L 6-2
6-3		 3.78 3.71
04/22/2021 Adult 18+
4.5		 Killer Gerbils 4.5 18+
Mid-Atlantic		 D3 Alexander Gerson
(3.64) 		Dede Dascalu
(4.13)
Chuong Dang
(3.59) 		L 4-6
6-1
1-0		 3.78 3.70
04/19/2021 Adult 18+
4.0		 Crawley
Mid-Atlantic		 D1 Fatih Selekler
(3.66) 		Greg Leihy
(3.85)
Richard Albers
(3.79) 		W 4-6
6-3
1-0		 3.86 3.71
04/06/2021 Adult 18+
4.0		 Crawley
Mid-Atlantic		 D2 DONALD CRAWLEY
(3.89) 		Jason Campion
(4.27)
Adam Thomasson
(3.23) 		W 6-2
7-5		 S 3.63
04/05/2021 Adult 18+
4.5		 Killer Gerbils 4.5 18+
Mid-Atlantic		 D3 Fatih Selekler
(3.64) 		Alan Ruskin
(-----)
Miquel Lopez
(4.14) 		L 2-6
6-4
1-0		 S 3.63
08/14/2020 Adult 18+
4.5		 Killer Gerbils 4.5 18+
Mid-Atlantic		 D2 Chris Miller
(4.09) 		Stewart Royals
(3.97)
Eston Harden
(3.98) 		L 6-1
6-4		 3.53 3.63
08/08/2020 Adult 18+
4.5		 Killer Gerbils 4.5 18+
Mid-Atlantic		 D1 Martin Morris
(3.73) 		Larry Dechter
(4.22)
Jared Fly
(4.18) 		L 6-2
6-2		 3.78 3.69
08/02/2020 Adult 18+
4.5		 Killer Gerbils 4.5 18+
Mid-Atlantic		 D2 Martin Morris
(3.73) 		Tzuhsiu Chiou
(3.99)
Daniel Mandl
(3.69) 		L 6-2
4-3		 3.61 3.65
07/29/2020 Adult 18+
4.5		 Killer Gerbils 4.5 18+
Mid-Atlantic		 D2 DONALD CRAWLEY
(3.85) 		Doug DeLawter
(4.11)
Eston Harden
(3.98) 		L 7-5
6-3		 3.80 3.67
08/21/2021 D3 Adult 40+
4.0
Sectionals
Leitzer - Kerr
Mid-Atlantic		 L Washington Generals
Mid-Atlantic
Jason Ditto (3.71) 6-4
6-0		 Amir Moinfar (3.78)
Anthony Pappas (3.76)
Match: 3.44 Rating: 3.59
08/21/2021 S1 Adult 40+
4.0
Sectionals
Leitzer - Kerr
Mid-Atlantic		 L Thomasson
Mid-Atlantic
6-3
6-3		 Joseph Benderson (3.69)
Match: 3.49 Rating: 3.62
08/20/2021 D2 Adult 40+
4.0
Sectionals
Leitzer - Kerr
Mid-Atlantic		 W Weber
Mid-Atlantic
Mark Muneses (3.91) 6-3
3-6
1-0		 Morgan Ames (3.70)
Dave Chirico (3.68)
Match: 3.59 Rating: 3.64
07/31/2021 D2 Adult 18+
4.0
Regionals
Crawley
Mid-Atlantic		 L Cobra Kai 4.0 18+
Mid-Atlantic
Nhat Ngo (3.73) 6-3
1-6
1-0		 Joseph Marino (3.69)
Marcus Moore (3.53)
Match: 3.62 Rating: 3.66
07/01/2021 D1 Adult 40+
4.0
Leitzer - Kerr
Mid-Atlantic		 W Smoot 4.0+
Mid-Atlantic
John Ciccarone (3.77) 6-4
6-2		 Joshua Sadler (3.41)
John Casey (3.87)
Match: 3.77 Rating: 3.69
06/23/2021 S1 Adult 40+
4.0
Leitzer - Kerr
Mid-Atlantic		 L Smoot 4.0+
Mid-Atlantic
6-3
7-6		 Erik Jones (3.54)
Match: 3.45 Rating: 3.64
06/19/2021 D1 Adult 40+
4.0
Leitzer - Kerr
Mid-Atlantic		 W Smoot 4.0+
Mid-Atlantic
Jason Ditto (3.74) 2-6
6-4
1-0		 John Casey (3.87)
Erik Jones (3.54)
Match: 3.63 Rating: 3.68
06/15/2021 D2 Adult 18+
4.5
Killer Gerbils 4.5 18+
Mid-Atlantic		 W ChaViss 4.5 18+
Mid-Atlantic
Vince Sbarra (-----) 6-0
6-0		 Default
Match: ----- Rating: -----
06/13/2021 S1 Adult 40+
4.0
Leitzer - Kerr
Mid-Atlantic		 W Smoot 4.0+
Mid-Atlantic
2-6
6-2
1-0		 Walter Parrish (3.34)
Match: 3.37 Rating: 3.65
06/08/2021 D3 Adult 18+
4.5
Killer Gerbils 4.5 18+
Mid-Atlantic		 L Quiet Storm 4.5 18+
Mid-Atlantic
Steve Chan (3.70) 6-4
6-3		 Rohan Bhale (4.26)
Matt Ross (4.08)
Match: 3.97 Rating: 3.76
06/05/2021 D2 Adult 18+
4.5
Killer Gerbils 4.5 18+
Mid-Atlantic		 L O'Colman / Craig 4.5 18+
Mid-Atlantic
Mikhail Laryukhin (3.86) 6-1
6-3		 Michael McMahon (3.92)
Alex Bollman (4.02)
Match: 3.60 Rating: 3.67
05/25/2021 D1 Adult 18+
4.0
Crawley
Mid-Atlantic		 L Gladden
Mid-Atlantic
Alexander Gerson (3.82) 7-5
2-6
1-0		 Steve Newcomer (3.94)
Jack Lavinder (3.60)
Match: 3.73 Rating: 3.70
05/16/2021 D3 Adult 18+
4.5
Killer Gerbils 4.5 18+
Mid-Atlantic		 L JustFici 4.5 18+
Mid-Atlantic
James Appel (3.42) 6-0
6-4		 Justin Cady (3.89)
Dwayne Herndon (3.72)
Match: 3.65 Rating: 3.69
05/15/2021 D2 Adult 18+
4.0
Crawley
Mid-Atlantic		 W Thomasson
Mid-Atlantic
Alexander Gerson (3.78) 6-4
6-4		 Thomas Chappell (3.61)
Andre Taggart (3.53)
Match: 3.63 Rating: 3.69
05/10/2021 D3 Adult 18+
4.0
Crawley
Mid-Atlantic		 W Appel
Mid-Atlantic
Fatih Selekler (3.67) 7-5
4-6
1-0		 Christopher Bell (3.01)
Keith Patrick (3.67)
Match: S Rating: 3.71
05/04/2021 D3 Adult 18+
4.5
Killer Gerbils 4.5 18+
Mid-Atlantic		 L Quiet Storm 4.5 18+
Mid-Atlantic
Steve Chan (3.69) 6-2
6-3		 Bruce Fulton (3.90)
Brian Wee (4.01)
Match: 3.72 Rating: 3.71
05/02/2021 D3 Adult 18+
4.5
Killer Gerbils 4.5 18+
Mid-Atlantic		 L ChaViss 4.5 18+
Mid-Atlantic
Alexander Gerson (3.74) 6-2
6-3		 Derek Ireland (3.97)
Byron Levy (4.11)
Match: 3.78 Rating: 3.71
04/22/2021 D3 Adult 18+
4.5
Killer Gerbils 4.5 18+
Mid-Atlantic		 L Average Joe's All Stars 4.5 18+
Mid-Atlantic
Alexander Gerson (3.64) 4-6
6-1
1-0		 Dede Dascalu (4.13)
Chuong Dang (3.59)
Match: 3.78 Rating: 3.70
04/19/2021 D1 Adult 18+
4.0
Crawley
Mid-Atlantic		 W Gladden
Mid-Atlantic
Fatih Selekler (3.66) 4-6
6-3
1-0		 Greg Leihy (3.85)
Richard Albers (3.79)
Match: 3.86 Rating: 3.71
04/06/2021 D2 Adult 18+
4.0
Crawley
Mid-Atlantic		 W Thomasson
Mid-Atlantic
DONALD CRAWLEY (3.89) 6-2
7-5		 Jason Campion (4.27)
Adam Thomasson (3.23)
Match: S Rating: 3.63
04/05/2021 D3 Adult 18+
4.5
Killer Gerbils 4.5 18+
Mid-Atlantic		 L JustFici 4.5 18+
Mid-Atlantic
Fatih Selekler (3.64) 2-6
6-4
1-0		 Alan Ruskin (-----)
Miquel Lopez (4.14)
Match: S Rating: 3.63
08/14/2020 D2 Adult 18+
4.5
Killer Gerbils 4.5 18+
Mid-Atlantic		 L JustFici
Mid-Atlantic
Chris Miller (4.09) 6-1
6-4		 Stewart Royals (3.97)
Eston Harden (3.98)
Match: 3.53 Rating: 3.63
08/08/2020 D1 Adult 18+
4.5
Killer Gerbils 4.5 18+
Mid-Atlantic		 L JustFici
Mid-Atlantic
Martin Morris (3.73) 6-2
6-2		 Larry Dechter (4.22)
Jared Fly (4.18)
Match: 3.78 Rating: 3.69
08/02/2020 D2 Adult 18+
4.5
Killer Gerbils 4.5 18+
Mid-Atlantic		 L O'Colman / Craig
Mid-Atlantic
Martin Morris (3.73) 6-2
4-3		 Tzuhsiu Chiou (3.99)
Daniel Mandl (3.69)
Match: 3.61 Rating: 3.65
07/29/2020 D2 Adult 18+
4.5
Killer Gerbils 4.5 18+
Mid-Atlantic		 L JustFici
Mid-Atlantic
DONALD CRAWLEY (3.85) 7-5
6-3		 Doug DeLawter (4.11)
Eston Harden (3.98)
Match: 3.80 Rating: 3.67
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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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