Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (2021) View Advanced Player Stats
yong ko (Midlothian, VA)
Male 		4.5 C
12/31/2023
Estimated Dynamic Rating 4.2008
5/23/2024
Projected Year End Rating ------
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4.5 Rating Meter
Rating Meter
4.0001 - 4.5000
Recent Match History Current Rating History
2021 Overall 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 4 4 0 50.0 18 9 9 50.0 165 83 82 50.3 0
Adult 40+ 4.5 3 1 2 0 33.3 8 3 5 37.5 64 28 36 43.8 1
Combo 7.5 4 3 1 0 75.0 9 6 3 66.7 77 44 33 57.1 0
Combo 8.5 7 2 5 0 28.6 17 7 10 41.2 138 73 65 52.9 0
Mixed 40+ 8.0 7 4 3 0 57.1 17 8 9 47.1 151 72 79 47.7 0
Total 29 14 15 0 48.3 69 33 36 47.8 595 300 295 50.4 1
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
11/07/2021 Combo
8.5		 6 TCRC Green/Stuckey
Mid-Atlantic		 D3 Teresa Lancaster
(3.31) 		Gerardo Garmendia
(3.70)
Tarja Kostin
(3.85) 		W 6-3
6-2		 4.38 -----
11/07/2021 Combo
7.5		 B3 MAC Loza Machine
Mid-Atlantic		 D1 Katie Hambrick
(2.99) 		Daniel DeRegibus
(-----)
Sonia Haley
(3.36) 		W 6-2
6-2		 S -----
11/03/2021 Combo
7.5		 B3 MAC Loza Machine
Mid-Atlantic		 D1 Katie Hambrick
(2.99) 		Jeffrey Blasko
(3.59)
Heather Colberg
(3.66) 		W 6-2
3-6
1-0		 4.20 -----
10/24/2021 Combo
8.5		 6 TCRC Green/Stuckey
Mid-Atlantic		 D1 Kristin Tetterton
(3.67) 		Dale nowery
(4.09)
Marie Taylor
(3.85) 		L 6-4
5-7
1-0		 4.12 -----
10/23/2021 Combo
7.5		 B3 MAC Loza Machine
Mid-Atlantic		 D3 Sarah Williams
(2.27) 		Lisa Adkins
(3.53)
Walter Norwood
(3.21) 		W 6-3
6-4		 4.40 -----
10/17/2021 Combo
8.5		 6 TCRC Green/Stuckey
Mid-Atlantic		 D1 Daniela Otto
(3.51) 		Elizabeth Kelly
(3.93)
Ryan Baker
(3.85) 		L 6-4
5-4		 4.07 -----
10/11/2021 Combo
8.5		 5 MAC Snow
Mid-Atlantic		 D1 Eric Spivack
(3.97) 		Duke Crane
(4.18)
Charles Wall III
(3.89) 		L 6-4
5-7
1-0		 4.04 -----
10/01/2021 Combo
8.5		 5 MAC Snow
Mid-Atlantic		 D1 Eric Spivack
(3.97) 		Craig Morgan
(4.08)
Charles Wall III
(3.89) 		L 7-6
6-3		 3.92 -----
09/11/2021 Combo
8.5		 5 MAC Snow
Mid-Atlantic		 D2 Matthew Morris
(3.71) 		Benjamin Andrews
(3.46)
Warren Smigo
(4.03) 		W 6-0
6-2		 4.29 -----
09/11/2021 Combo
7.5		 B3 MAC Loza Machine
Mid-Atlantic		 D2 Isabel Lee
(3.31) 		Nicola Blaha
(3.64)
Alex Neuwelt
(3.69) 		L 7-5
7-5		 3.94 -----
08/24/2021 Combo
8.5		 5 MAC Snow
Mid-Atlantic		 D1 William Reid
(3.69) 		Ralph Agpaoa
(4.06)
Drew Lineberger
(4.05) 		L 6-4
3-6
1-0		 4.22 -----
08/16/2021 Adult 40+
4.5		 1 James River Morgan's Surge
Mid-Atlantic		 D3 Glenn Dubiel
(-----) 		Default W 6-0
6-0		 ----- -----
07/28/2021 Mixed 40+
8.0		 14 MAC Snow
Mid-Atlantic		 D3 Katherine Faraci
(3.37) 		Kathryn Hall
(3.92)
Ed Ohman
(3.39) 		W 6-3
7-6		 4.06 3.99
07/26/2021 Mixed 40+
8.0		 14 MAC Snow
Mid-Atlantic		 D3 Toni O'Reilly
(3.18) 		Rene Philhower
(3.82)
Greg Robinson
(3.74) 		L 6-4
7-5		 4.07 4.00
07/24/2021 Adult 40+
4.5		 1 James River Morgan's Surge
Mid-Atlantic		 D2 Adam Plotkin
(3.98) 		Mark Duncan
(4.39)
Charles Stafford
(4.00) 		L 6-7
6-3
1-0		 4.16 4.07
07/18/2021 Adult 40+
4.5		 1 James River Morgan's Surge
Mid-Atlantic		 D3 Warren Smigo
(3.97) 		Chuck Snow
(4.04)
Michael Piland
(4.11) 		L 6-2
7-5		 3.93 4.04
07/05/2021 Mixed 40+
8.0		 14 MAC Snow
Mid-Atlantic		 D3 Dawn Sallas
(3.28) 		Kevin Cousins
(3.42)
Leigh Ann Barker
(3.50) 		W 6-7
7-6
1-0		 3.83 3.95
06/30/2021 Mixed 40+
8.0		 14 MAC Snow
Mid-Atlantic		 D3 Katherine Faraci
(3.38) 		Lloyd Arnold
(3.55)
Philathea Cole
(3.51) 		W 6-3
5-7
1-0		 3.89 3.97
06/28/2021 Adult 40+
4.5		 1 James River Morgan's Surge
Mid-Atlantic		 D1 Sung Kang
(4.23) 		William Pilc
(3.74)
Charles Wayland
(4.00) 		W 6-4
4-6
1-0		 3.81 4.01
06/15/2021 Mixed 40+
8.0		 14 MAC Snow
Mid-Atlantic		 D3 Katherine Faraci
(3.40) 		Theresa Hughes
(3.49)
Michael Hazelwood
(3.76) 		W 6-3
5-7
1-0		 3.96 4.00
06/06/2021 Adult 18+
4.5		 2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 D2 Glenn Dubiel
(4.03) 		Eric Nelson
(3.94)
Mike Jackson
(4.12) 		L 7-5
7-5		 4.00 4.06
05/28/2021 Mixed 40+
8.0		 14 MAC Snow
Mid-Atlantic		 D3 Katherine Faraci
(3.44) 		Gordon Macgill
(4.27)
Caroline Ogilvie
(3.34) 		L 6-1
6-4		 3.84 3.98
05/28/2021 Adult 18+
4.5		 2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 D1 Glenn Dubiel
(3.91) 		James Atchison
(3.98)
Leonard Booker
(4.42) 		W 6-2
6-3		 4.50 4.14
05/21/2021 Adult 18+
4.5		 2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 D1 Donnell Stewart
(4.15) 		Tommy Bader
(4.06)
Jason Voigt
(4.03) 		L 6-4
6-7
1-0		 3.95 4.04
05/16/2021 Adult 18+
4.5		 2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 D2 Grant Slegowski
(3.87) 		Brian Culley
(3.89)
Gerry Roerty
(3.84) 		W 7-6
7-5		 4.01 4.07
05/12/2021 Mixed 40+
8.0		 14 MAC Snow
Mid-Atlantic		 D1 Toni O'Reilly
(3.19) 		Andy Tucker
(3.59)
Lara Green
(3.69) 		L 6-3
6-4		 3.92 4.01
05/02/2021 Adult 18+
4.5		 2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 D1 Grant Slegowski
(3.96) 		Timothy Wade
(3.89)
Eric Estes
(3.79) 		L 6-3
6-4		 3.77 4.03
04/26/2021 Adult 18+
4.5		 2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 D3 Glenn Dubiel
(4.03) 		Ralph Agpaoa
(4.01)
Eric Cofer
(3.98) 		W 6-2
4-6
1-0		 4.11 4.11
04/18/2021 Adult 18+
4.5		 2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 D2 Dale nowery
(4.14) 		Robert Wagner
(-----)
Robert Quinn
(4.41) 		L 6-1
6-4		 S 4.11
04/11/2021 Adult 18+
4.5		 2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 D1 Glenn Dubiel
(3.81) 		Tommy Bader
(4.06)
Duke Crane
(4.38) 		W 7-5
6-2		 4.49 4.11
11/07/2021 D3 Combo
8.5
6 TCRC Green/Stuckey
Mid-Atlantic		 W 12 Raintree Ray
Mid-Atlantic
Teresa Lancaster (3.31) 6-3
6-2		 Gerardo Garmendia (3.70)
Tarja Kostin (3.85)
Match: 4.38 Rating: -----
11/07/2021 D1 Combo
7.5
B3 MAC Loza Machine
Mid-Atlantic		 W B2 Avalon Ghita 7.5
Mid-Atlantic
Katie Hambrick (2.99) 6-2
6-2		 Daniel DeRegibus (-----)
Sonia Haley (3.36)
Match: S Rating: -----
11/03/2021 D1 Combo
7.5
B3 MAC Loza Machine
Mid-Atlantic		 W B4 ACAC Carman Over Served
Mid-Atlantic
Katie Hambrick (2.99) 6-2
3-6
1-0		 Jeffrey Blasko (3.59)
Heather Colberg (3.66)
Match: 4.20 Rating: -----
10/24/2021 D1 Combo
8.5
6 TCRC Green/Stuckey
Mid-Atlantic		 L 8 Belmont Lane/Wade
Mid-Atlantic
Kristin Tetterton (3.67) 6-4
5-7
1-0		 Dale nowery (4.09)
Marie Taylor (3.85)
Match: 4.12 Rating: -----
10/23/2021 D3 Combo
7.5
B3 MAC Loza Machine
Mid-Atlantic		 W B11 Burkwood Carter
Mid-Atlantic
Sarah Williams (2.27) 6-3
6-4		 Lisa Adkins (3.53)
Walter Norwood (3.21)
Match: 4.40 Rating: -----
10/17/2021 D1 Combo
8.5
6 TCRC Green/Stuckey
Mid-Atlantic		 L 4 Westwood Kelly
Mid-Atlantic
Daniela Otto (3.51) 6-4
5-4		 Elizabeth Kelly (3.93)
Ryan Baker (3.85)
Match: 4.07 Rating: -----
10/11/2021 D1 Combo
8.5
5 MAC Snow
Mid-Atlantic		 L 4 ACAC Captain Morgan's Stand
Mid-Atlantic
Eric Spivack (3.97) 6-4
5-7
1-0		 Duke Crane (4.18)
Charles Wall III (3.89)
Match: 4.04 Rating: -----
10/01/2021 D1 Combo
8.5
5 MAC Snow
Mid-Atlantic		 L 4 ACAC Captain Morgan's Stand
Mid-Atlantic
Eric Spivack (3.97) 7-6
6-3		 Craig Morgan (4.08)
Charles Wall III (3.89)
Match: 3.92 Rating: -----
09/11/2021 D2 Combo
8.5
5 MAC Snow
Mid-Atlantic		 W 2 ACAC Andrews Shake and Bake
Mid-Atlantic
Matthew Morris (3.71) 6-0
6-2		 Benjamin Andrews (3.46)
Warren Smigo (4.03)
Match: 4.29 Rating: -----
09/11/2021 D2 Combo
7.5
B3 MAC Loza Machine
Mid-Atlantic		 L B12 ACAC Stephens Attacks
Mid-Atlantic
Isabel Lee (3.31) 7-5
7-5		 Nicola Blaha (3.64)
Alex Neuwelt (3.69)
Match: 3.94 Rating: -----
08/24/2021 D1 Combo
8.5
5 MAC Snow
Mid-Atlantic		 L 1 Belmont Ballers Gruhl
Mid-Atlantic
William Reid (3.69) 6-4
3-6
1-0		 Ralph Agpaoa (4.06)
Drew Lineberger (4.05)
Match: 4.22 Rating: -----
08/16/2021 D3 Adult 40+
4.5
1 James River Morgan's Surge
Mid-Atlantic		 W 2 Salisbury Miller
Mid-Atlantic
Glenn Dubiel (-----) 6-0
6-0		 Default
Match: ----- Rating: -----
07/28/2021 D3 Mixed 40+
8.0
14 MAC Snow
Mid-Atlantic		 W 10 Dominion Club Natarajan
Mid-Atlantic
Katherine Faraci (3.37) 6-3
7-6		 Kathryn Hall (3.92)
Ed Ohman (3.39)
Match: 4.06 Rating: 3.99
07/26/2021 D3 Mixed 40+
8.0
14 MAC Snow
Mid-Atlantic		 L 1 Westwood Slegowski
Mid-Atlantic
Toni O'Reilly (3.18) 6-4
7-5		 Rene Philhower (3.82)
Greg Robinson (3.74)
Match: 4.07 Rating: 4.00
07/24/2021 D2 Adult 40+
4.5
1 James River Morgan's Surge
Mid-Atlantic		 L 3 Westwood Stafford
Mid-Atlantic
Adam Plotkin (3.98) 6-7
6-3
1-0		 Mark Duncan (4.39)
Charles Stafford (4.00)
Match: 4.16 Rating: 4.07
07/18/2021 D3 Adult 40+
4.5
1 James River Morgan's Surge
Mid-Atlantic		 L 4 MAC Johnston
Mid-Atlantic
Warren Smigo (3.97) 6-2
7-5		 Chuck Snow (4.04)
Michael Piland (4.11)
Match: 3.93 Rating: 4.04
07/05/2021 D3 Mixed 40+
8.0
14 MAC Snow
Mid-Atlantic		 W 8 MAC Johnston
Mid-Atlantic
Dawn Sallas (3.28) 6-7
7-6
1-0		 Kevin Cousins (3.42)
Leigh Ann Barker (3.50)
Match: 3.83 Rating: 3.95
06/30/2021 D3 Mixed 40+
8.0
14 MAC Snow
Mid-Atlantic		 W 6 Belmont Ballistic Arnold
Mid-Atlantic
Katherine Faraci (3.38) 6-3
5-7
1-0		 Lloyd Arnold (3.55)
Philathea Cole (3.51)
Match: 3.89 Rating: 3.97
06/28/2021 D1 Adult 40+
4.5
1 James River Morgan's Surge
Mid-Atlantic		 W 3 Westwood Stafford
Mid-Atlantic
Sung Kang (4.23) 6-4
4-6
1-0		 William Pilc (3.74)
Charles Wayland (4.00)
Match: 3.81 Rating: 4.01
06/15/2021 D3 Mixed 40+
8.0
14 MAC Snow
Mid-Atlantic		 W 3 Burkwood Colgin
Mid-Atlantic
Katherine Faraci (3.40) 6-3
5-7
1-0		 Theresa Hughes (3.49)
Michael Hazelwood (3.76)
Match: 3.96 Rating: 4.00
06/06/2021 D2 Adult 18+
4.5
2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 L 7 MAC Johnston
Mid-Atlantic
Glenn Dubiel (4.03) 7-5
7-5		 Eric Nelson (3.94)
Mike Jackson (4.12)
Match: 4.00 Rating: 4.06
05/28/2021 D3 Mixed 40+
8.0
14 MAC Snow
Mid-Atlantic		 L 9 JRHS Stephens Mixed Assault 8.0
Mid-Atlantic
Katherine Faraci (3.44) 6-1
6-4		 Gordon Macgill (4.27)
Caroline Ogilvie (3.34)
Match: 3.84 Rating: 3.98
05/28/2021 D1 Adult 18+
4.5
2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 W 5 Richmond 4.5 Tennisbums
Mid-Atlantic
Glenn Dubiel (3.91) 6-2
6-3		 James Atchison (3.98)
Leonard Booker (4.42)
Match: 4.50 Rating: 4.14
05/21/2021 D1 Adult 18+
4.5
2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 L 4 ACAC Crane
Mid-Atlantic
Donnell Stewart (4.15) 6-4
6-7
1-0		 Tommy Bader (4.06)
Jason Voigt (4.03)
Match: 3.95 Rating: 4.04
05/16/2021 D2 Adult 18+
4.5
2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 W 3 Burkwood Russell R&R
Mid-Atlantic
Grant Slegowski (3.87) 7-6
7-5		 Brian Culley (3.89)
Gerry Roerty (3.84)
Match: 4.01 Rating: 4.07
05/12/2021 D1 Mixed 40+
8.0
14 MAC Snow
Mid-Atlantic		 L 5 TCRC Green/Stuckey
Mid-Atlantic
Toni O'Reilly (3.19) 6-3
6-4		 Andy Tucker (3.59)
Lara Green (3.69)
Match: 3.92 Rating: 4.01
05/02/2021 D1 Adult 18+
4.5
2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 L 6 Woodlake Patterson
Mid-Atlantic
Grant Slegowski (3.96) 6-3
6-4		 Timothy Wade (3.89)
Eric Estes (3.79)
Match: 3.77 Rating: 4.03
04/26/2021 D3 Adult 18+
4.5
2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 W 8 Raintree Parker
Mid-Atlantic
Glenn Dubiel (4.03) 6-2
4-6
1-0		 Ralph Agpaoa (4.01)
Eric Cofer (3.98)
Match: 4.11 Rating: 4.11
04/18/2021 D2 Adult 18+
4.5
2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 L 1 LPC Godsey GodsRuhl
Mid-Atlantic
Dale nowery (4.14) 6-1
6-4		 Robert Wagner (-----)
Robert Quinn (4.41)
Match: S Rating: 4.11
04/11/2021 D1 Adult 18+
4.5
2 James River Stephens Morgan's Surge 4.5
Mid-Atlantic		 W 4 ACAC Crane
Mid-Atlantic
Glenn Dubiel (3.81) 7-5
6-2		 Tommy Bader (4.06)
Duke Crane (4.38)
Match: 4.49 Rating: 4.11
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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