Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (Rating) View Advanced Player Stats
Jonathan Santos (Fairfax, VA)
Male 		4.5 C
12/31/2023
Estimated Dynamic Rating 4.4019
5/8/2024
Projected Year End Rating ------
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4.5 Rating Meter
Rating Meter
4.0001 - 4.5000
Recent Match History Current Rating History
Current Rating Season
League/Level Total
Matches		 Win Loss Tie WPct Total
Sets		 Win Loss WPct Total
Games		 Win Loss WPct Defaults
Adult 18+ 4.5 8 6 2 0 75.0 15 12 3 80.0 139 86 53 61.9 0
Adult 40+ 4.5 10 8 2 0 80.0 22 17 5 77.3 191 113 78 59.2 0
Mixed 18+ 8.0 1 1 0 0 100.0 2 2 0 100.0 19 12 7 63.2 1
Mixed 18+ 9.0 2 2 0 0 100.0 5 4 1 80.0 40 23 17 57.5 2
Mixed 40+ 9.0 2 1 1 0 50.0 4 2 2 50.0 37 21 16 56.8 0
Tri-Level 18+ 4.5 3 0 3 0 0.0 6 0 6 0.0 59 21 38 35.6 0
Total 26 18 8 0 69.2 54 37 17 68.5 485 276 209 56.9 3
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
05/04/2024 Adult 18+
4.5		 Team 2 Always Causing a Racquet
Mid-Atlantic		 D1 Reginald Tull
(4.29) 		David Evinger
(4.04)
Spencer Kallor
(4.19) 		W 6-2
7-5		 4.32 4.40
04/30/2024 Adult 18+
4.5		 Lieber
Mid-Atlantic		 D2 Cosby Hunt
(4.40) 		Arash Hanif
(4.05)
Qi Hua
(4.25) 		L 6-4
6-1		 3.94 4.36
04/19/2024 Mixed 40+
9.0		 Team 2 Grace's Aces
Mid-Atlantic		 D1 Erika Trost
(4.36) 		Phat Bui
(4.32)
Kerrie Jenkins
(4.13) 		L 7-6
2-2		 4.24 4.42
04/16/2024 Adult 18+
4.5		 Lieber
Mid-Atlantic		 D3 Zachary Jones
(4.52) 		Derek Ireland
(4.25)
Daniel Park
(4.25) 		W 6-3
6-2		 4.45 4.45
04/11/2024 Adult 18+
4.5		 Lieber
Mid-Atlantic		 D3 Zachary Jones
(4.54) 		Randolph Court
(3.91)
Seth Yoskowitz
(4.10) 		W 6-3
6-2		 4.27 4.44
04/09/2024 Mixed 40+
9.0		 Team 2 Grace's Aces
Mid-Atlantic		 D2 Erika Trost
(4.40) 		Ronda Estridge
(4.02)
Chris Ford
(4.08) 		W 6-1
7-6		 4.27 4.45
04/07/2024 Adult 18+
4.5		 Team 2 Always Causing a Racquet
Mid-Atlantic		 D1 Christopher Curtin
(4.54) 		Sumeet Chawla
(3.89)
Zachary Errickson
(4.06) 		W 6-2
7-5		 4.17 4.45
04/07/2024 Adult 18+
4.5		 Heavy Hitters
Mid-Atlantic		 D2 Mehrban Iranshad
(4.54) 		Luis Giraldo
(4.47)
Damani Eubanks
(4.20) 		L 7-6 4.28 4.46
04/06/2024 Adult 18+
4.5		 Heavy Hitters
Mid-Atlantic		 D2 Mehrban Iranshad
(4.50) 		Juan Jose Tijero
(4.01)
Nicholas McMurray
(4.51) 		W 6-0
6-2		 4.65 4.52
04/04/2024 Adult 40+
4.5		 AceBlattRosen
Mid-Atlantic		 D1 Cosby Hunt
(4.38) 		Oliver Lee
(4.43)
Reginald Tull
(4.41) 		W 6-2
6-2		 4.74 4.52
04/01/2024 Adult 18+
4.5		 Team 2 Always Causing a Racquet
Mid-Atlantic		 D1 Rory Smith
(4.50) 		Robert Clark
(4.34)
David Stepherson
(4.34) 		W 7-5
6-3		 4.45 4.44
03/16/2024 Mixed 18+
9.0		 Selective Shankerz 18+
Middle States		 D3 Mina Kuriashkin
(-----) 		Default W 6-0
6-0		 ----- -----
03/12/2024 Adult 40+
4.5		 AceBlattRosen
Mid-Atlantic		 D3 Don Davis
(4.25) 		Chris Ryan
(4.30)
Reginald Tull
(4.38) 		W 7-6
6-3		 4.52 4.46
03/10/2024 Adult 40+
4.5		 Team 5 Spin Doctors
Mid-Atlantic		 D3 Christian Valencia
(4.50) 		Thuy Nguyen
(4.04)
Kiet Phan
(3.90) 		L 4-6
7-6
1-0		 S 4.43
03/09/2024 Mixed 18+
8.0		 Team 3 Grace's Aces
Mid-Atlantic		 D3 Mia Kim
(-----) 		Default W 6-0
6-0		 ----- -----
03/04/2024 Adult 40+
4.5		 AceBlattRosen
Mid-Atlantic		 D1 Don Davis
(4.24) 		Seth Yoskowitz
(4.08)
John Denemark
(4.14) 		W 6-2
6-3		 4.45 4.43
02/24/2024 Adult 40+
4.5		 Team 5 Spin Doctors
Mid-Atlantic		 D2 Rory Smith
(4.41) 		Kenny Day
(4.34)
David Turner
(4.54) 		W 6-4
6-4		 4.55 4.44
02/23/2024 Mixed 18+
9.0		 Team 3 Grace's Aces
Mid-Atlantic		 D2 Emily Rounsley
(3.90) 		Nathan Leslie
(4.16)
Ana Maria Pena Castro
(4.20) 		W 6-4
6-2		 S 4.49
02/20/2024 Adult 40+
4.5		 AceBlattRosen
Mid-Atlantic		 D1 Paul Levine
(4.39) 		Hung Nguyen
(4.30)
Changfu Xiao
(4.40) 		W 6-3
6-4		 4.51 4.43
02/19/2024 Adult 40+
4.5		 AceBlattRosen
Mid-Atlantic		 D1 Kevin Lyle
(4.12) 		John Olson
(4.52)
James Montgomery
(4.39) 		L 6-3
6-3		 4.40 4.41
02/17/2024 Mixed 18+
9.0		 Selective Shankerz 18+
Middle States		 D2 Carly Martinson
(4.31) 		Amanda Laskowski
(4.19)
Henrik Svensson
(4.16) 		W 3-6
7-5
1-0		 S 4.49
02/10/2024 Mixed 18+
9.0		 Team 3 Grace's Aces
Mid-Atlantic		 D1 Grace Kim
(-----) 		Default W 6-0
6-0		 ----- -----
02/08/2024 Adult 40+
4.5		 Team 5 Spin Doctors
Mid-Atlantic		 D3 Zachary Jones
(4.51) 		Bob White
(4.14)
Ardavan Mesbahi
(4.11) 		W 6-2
7-5		 4.25 4.39
02/03/2024 Tri-Level 18+
4.5
Sectionals		 Tritonal
Middle States		 D145 Alfredo Perez
(4.33) 		Raymond Matthieu Postadan
(4.25)
Sidharth Dhawan
(4.43) 		L 6-4
6-4		 4.29 4.41
02/02/2024 Tri-Level 18+
4.5
Sectionals		 Tritonal
Middle States		 D145 Alfredo Perez
(4.37) 		Michael King
(4.56)
Shane Jeffray
(4.37) 		L 7-6
6-0		 4.28 4.42
01/27/2024 Mixed 18+
8.0		 Team 3 Grace's Aces
Mid-Atlantic		 D1 Mia Kim
(3.41) 		William Stern
(4.65)
Sarah Schrieber
(3.48) 		W 6-3
6-4		 S 4.49
01/25/2024 Adult 40+
4.5		 AceBlattRosen
Mid-Atlantic		 D2 Paul Levine
(4.43) 		Harry Hu
(4.01)
Kevin Yang
(4.07) 		W 6-2
6-2		 4.35 4.44
01/19/2024 Tri-Level 18+
4.5
Sectionals		 High Rollers 2.0
Mid-Atlantic		 D145 Laith Layous
(4.39) 		Logan Gruhl
(4.50)
Todd Williams
(4.49) 		L 7-5
6-2		 4.36 4.45
01/14/2024 Adult 40+
4.5		 Team 5 Spin Doctors
Mid-Atlantic		 D3 Alfredo Perez
(4.37) 		Chad Wolf
(4.49)
Kevin Lyle
(4.09) 		W 2-6
6-4
1-0		 4.32 4.46
05/04/2024 D1 Adult 18+
4.5
Team 2 Always Causing a Racquet
Mid-Atlantic		 W Team 6 Stringing Winners
Mid-Atlantic
Reginald Tull (4.29) 6-2
7-5		 David Evinger (4.04)
Spencer Kallor (4.19)
Match: 4.32 Rating: 4.40
04/30/2024 D2 Adult 18+
4.5
Lieber
Mid-Atlantic		 L ThreeBody
Mid-Atlantic
Cosby Hunt (4.40) 6-4
6-1		 Arash Hanif (4.05)
Qi Hua (4.25)
Match: 3.94 Rating: 4.36
04/19/2024 D1 Mixed 40+
9.0
Team 2 Grace's Aces
Mid-Atlantic		 L Team 1 Double-Trouble
Mid-Atlantic
Erika Trost (4.36) 7-6
2-2		 Phat Bui (4.32)
Kerrie Jenkins (4.13)
Match: 4.24 Rating: 4.42
04/16/2024 D3 Adult 18+
4.5
Lieber
Mid-Atlantic		 W Miletti
Mid-Atlantic
Zachary Jones (4.52) 6-3
6-2		 Derek Ireland (4.25)
Daniel Park (4.25)
Match: 4.45 Rating: 4.45
04/11/2024 D3 Adult 18+
4.5
Lieber
Mid-Atlantic		 W Terminetters
Mid-Atlantic
Zachary Jones (4.54) 6-3
6-2		 Randolph Court (3.91)
Seth Yoskowitz (4.10)
Match: 4.27 Rating: 4.44
04/09/2024 D2 Mixed 40+
9.0
Team 2 Grace's Aces
Mid-Atlantic		 W Team 1 Double-Trouble
Mid-Atlantic
Erika Trost (4.40) 6-1
7-6		 Ronda Estridge (4.02)
Chris Ford (4.08)
Match: 4.27 Rating: 4.45
04/07/2024 D1 Adult 18+
4.5
Team 2 Always Causing a Racquet
Mid-Atlantic		 W Team 1 Palle
Mid-Atlantic
Christopher Curtin (4.54) 6-2
7-5		 Sumeet Chawla (3.89)
Zachary Errickson (4.06)
Match: 4.17 Rating: 4.45
04/07/2024 D2 Adult 18+
4.5
Heavy Hitters
Mid-Atlantic		 L Net Assets
Mid-Atlantic
Mehrban Iranshad (4.54) 7-6 Luis Giraldo (4.47)
Damani Eubanks (4.20)
Match: 4.28 Rating: 4.46
04/06/2024 D2 Adult 18+
4.5
Heavy Hitters
Mid-Atlantic		 W Game Time
Mid-Atlantic
Mehrban Iranshad (4.50) 6-0
6-2		 Juan Jose Tijero (4.01)
Nicholas McMurray (4.51)
Match: 4.65 Rating: 4.52
04/04/2024 D1 Adult 40+
4.5
AceBlattRosen
Mid-Atlantic		 W Tull-Lieber
Mid-Atlantic
Cosby Hunt (4.38) 6-2
6-2		 Oliver Lee (4.43)
Reginald Tull (4.41)
Match: 4.74 Rating: 4.52
04/01/2024 D1 Adult 18+
4.5
Team 2 Always Causing a Racquet
Mid-Atlantic		 W Team 7 Skiff
Mid-Atlantic
Rory Smith (4.50) 7-5
6-3		 Robert Clark (4.34)
David Stepherson (4.34)
Match: 4.45 Rating: 4.44
03/16/2024 D3 Mixed 18+
9.0
Selective Shankerz 18+
Middle States		 W Doylestown
Middle States
Mina Kuriashkin (-----) 6-0
6-0		 Default
Match: ----- Rating: -----
03/12/2024 D3 Adult 40+
4.5
AceBlattRosen
Mid-Atlantic		 W Tull-Lieber
Mid-Atlantic
Don Davis (4.25) 7-6
6-3		 Chris Ryan (4.30)
Reginald Tull (4.38)
Match: 4.52 Rating: 4.46
03/10/2024 D3 Adult 40+
4.5
Team 5 Spin Doctors
Mid-Atlantic		 L Team 2 The Nguyeners
Mid-Atlantic
Christian Valencia (4.50) 4-6
7-6
1-0		 Thuy Nguyen (4.04)
Kiet Phan (3.90)
Match: S Rating: 4.43
03/09/2024 D3 Mixed 18+
8.0
Team 3 Grace's Aces
Mid-Atlantic		 W Team 2 Double Trouble
Mid-Atlantic
Mia Kim (-----) 6-0
6-0		 Default
Match: ----- Rating: -----
03/04/2024 D1 Adult 40+
4.5
AceBlattRosen
Mid-Atlantic		 W Terminetters
Mid-Atlantic
Don Davis (4.24) 6-2
6-3		 Seth Yoskowitz (4.08)
John Denemark (4.14)
Match: 4.45 Rating: 4.43
02/24/2024 D2 Adult 40+
4.5
Team 5 Spin Doctors
Mid-Atlantic		 W Team 3 Westwood Team Fever Tree 4.5
Mid-Atlantic
Rory Smith (4.41) 6-4
6-4		 Kenny Day (4.34)
David Turner (4.54)
Match: 4.55 Rating: 4.44
02/23/2024 D2 Mixed 18+
9.0
Team 3 Grace's Aces
Mid-Atlantic		 W Team 2 Triple Threat
Mid-Atlantic
Emily Rounsley (3.90) 6-4
6-2		 Nathan Leslie (4.16)
Ana Maria Pena Castro (4.20)
Match: S Rating: 4.49
02/20/2024 D1 Adult 40+
4.5
AceBlattRosen
Mid-Atlantic		 W ThreeBody40
Mid-Atlantic
Paul Levine (4.39) 6-3
6-4		 Hung Nguyen (4.30)
Changfu Xiao (4.40)
Match: 4.51 Rating: 4.43
02/19/2024 D1 Adult 40+
4.5
AceBlattRosen
Mid-Atlantic		 L Miletti
Mid-Atlantic
Kevin Lyle (4.12) 6-3
6-3		 John Olson (4.52)
James Montgomery (4.39)
Match: 4.40 Rating: 4.41
02/17/2024 D2 Mixed 18+
9.0
Selective Shankerz 18+
Middle States		 W TA 9.0
Middle States
Carly Martinson (4.31) 3-6
7-5
1-0		 Amanda Laskowski (4.19)
Henrik Svensson (4.16)
Match: S Rating: 4.49
02/10/2024 D1 Mixed 18+
9.0
Team 3 Grace's Aces
Mid-Atlantic		 W Team 1 Pro Penn 1
Mid-Atlantic
Grace Kim (-----) 6-0
6-0		 Default
Match: ----- Rating: -----
02/08/2024 D3 Adult 40+
4.5
Team 5 Spin Doctors
Mid-Atlantic		 W Team 4 Fun Bunch
Mid-Atlantic
Zachary Jones (4.51) 6-2
7-5		 Bob White (4.14)
Ardavan Mesbahi (4.11)
Match: 4.25 Rating: 4.39
02/03/2024 D145 Tri-Level 18+
4.5
Sectionals
Tritonal
Middle States		 L National/No Strings Attached
Middle States
Alfredo Perez (4.33) 6-4
6-4		 Raymond Matthieu Postadan (4.25)
Sidharth Dhawan (4.43)
Match: 4.29 Rating: 4.41
02/02/2024 D145 Tri-Level 18+
4.5
Sectionals
Tritonal
Middle States		 L Naylor's Run 12.0
Middle States
Alfredo Perez (4.37) 7-6
6-0		 Michael King (4.56)
Shane Jeffray (4.37)
Match: 4.28 Rating: 4.42
01/27/2024 D1 Mixed 18+
8.0
Team 3 Grace's Aces
Mid-Atlantic		 W Team 5 Over Served
Mid-Atlantic
Mia Kim (3.41) 6-3
6-4		 William Stern (4.65)
Sarah Schrieber (3.48)
Match: S Rating: 4.49
01/25/2024 D2 Adult 40+
4.5
AceBlattRosen
Mid-Atlantic		 W ThreeBody40
Mid-Atlantic
Paul Levine (4.43) 6-2
6-2		 Harry Hu (4.01)
Kevin Yang (4.07)
Match: 4.35 Rating: 4.44
01/19/2024 D145 Tri-Level 18+
4.5
Sectionals
High Rollers 2.0
Mid-Atlantic		 L Magnolia Green Sebetic / Gruhl
Mid-Atlantic
Laith Layous (4.39) 7-5
6-2		 Logan Gruhl (4.50)
Todd Williams (4.49)
Match: 4.36 Rating: 4.45
01/14/2024 D3 Adult 40+
4.5
Team 5 Spin Doctors
Mid-Atlantic		 W Team 1 Mojos
Mid-Atlantic
Alfredo Perez (4.37) 2-6
6-4
1-0		 Chad Wolf (4.49)
Kevin Lyle (4.09)
Match: 4.32 Rating: 4.46
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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