Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (Rating) View Advanced Player Stats
Emmanuel Alejandro Briones Diaz (Oakland, CA)
Male 		4.5 C
12/31/2024
Estimated Dynamic Rating 4.2172
4/30/2025
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 1 1 0 0 100.0 2 2 0 100.0 19 13 6 68.4 0
Combo 7.5 6 5 1 0 83.3 16 10 6 62.5 122 64 58 52.5 0
Combo 8.5 1 0 1 0 0.0 2 0 2 0.0 20 7 13 35.0 0
Mixed 18+ 9.0 2 2 0 0 100.0 5 4 1 80.0 38 25 13 65.8 1
Total 10 8 2 0 80.0 25 16 9 64.0 199 109 90 54.8 1
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
04/13/2025 Adult 18+
4.5		 RICHMOND TA/NICHOLL PK 18AM4.5A
No California		 D1 Tomas Perez Alfonso
(-----) 		Roni Kholomyansky
(4.07)
Alan Crowley
(3.76) 		W 7-5
6-1		 S 4.22
03/16/2025 Mixed 18+
9.0		 RICHMOND TA/NICHOLL PK 18MX9.0A
No California		 D1 Nancy Wilson
(4.20) 		Lilana Spindler
(4.33)
Damon Levy
(4.10) 		W 7-5
6-1		 4.44 4.27
02/22/2025 Mixed 18+
9.0		 RICHMOND TA/NICHOLL PK 18MX9.0A
No California		 D3 Shin Koo
(-----) 		Default W 6-0
6-0		 ----- -----
02/15/2025 Mixed 18+
9.0		 RICHMOND TA/NICHOLL PK 18MX9.0A
No California		 D2 Nancy Wilson
(4.17) 		Henry Qi
(3.82)
Alexandra Kahn
(-----) 		W 6-0
5-7
1-0		 S 4.22
01/26/2025 Combo
7.5
Sectionals		 RICHMOND TA/NICHOLL PK CM7.5A
No California		 D3 Marco Valgonio
(3.69) 		Joseph Duong
(4.20)
Jagmit Dhah
(3.56) 		L 7-5
6-2		 3.97 -----
01/26/2025 Combo
7.5
Sectionals		 RICHMOND TA/NICHOLL PK CM7.5A
No California		 D2 Marco Valgonio
(3.69) 		Chandra Mahadevan
(4.04)
Vinaykumar Bhagwat
(3.64) 		W 6-4
4-6
1-0		 4.13 -----
01/25/2025 Combo
7.5
Sectionals		 RICHMOND TA/NICHOLL PK CM7.5A
No California		 D2 Marco Valgonio
(3.69) 		Jaewan Mun
(4.14)
Wade Conklin
(3.67) 		W 6-1
3-6
1-0		 4.26 -----
01/24/2025 Combo
8.5
Sectionals		 RICHMOND TA/NICHOLL PK CM8.5A
No California		 D3 Jason Pfeifle
(3.90) 		Jonathon Feyerherm
(4.07)
Matthew Goodyear
(4.02) 		L 6-2
7-5		 4.03 -----
01/24/2025 Combo
7.5
Sectionals		 RICHMOND TA/NICHOLL PK CM7.5A
No California		 D1 Salvatore Marchetti
(3.44) 		Lawrence Coburn
(4.01)
Bryan Kurtz
(3.51) 		W 3-6
7-6
1-0		 4.12 -----
01/24/2025 Combo
7.5
Sectionals		 RICHMOND TA/NICHOLL PK CM7.5A
No California		 D1 Salvatore Marchetti
(3.44) 		Joseph Cifelli
(3.75)
Taylor Shigihara
(3.89) 		W 7-5
6-2		 4.38 -----
11/23/2024 Combo
7.5
Flight		 RICHMOND TA/NICHOLL PK CM7.5A
No California		 D3 Marco Valgonio
(3.69) 		Benjamin Brown
(3.70)
Will Sheldon
(4.05) 		W 6-2
5-7
1-0		 4.21 -----
04/13/2025 D1 Adult 18+
4.5
RICHMOND TA/NICHOLL PK 18AM4.5A
No California		 W SAN PABLO PK 18AM4.5A
No California
Tomas Perez Alfonso (-----) 7-5
6-1		 Roni Kholomyansky (4.07)
Alan Crowley (3.76)
Match: S Rating: 4.22
03/16/2025 D1 Mixed 18+
9.0
RICHMOND TA/NICHOLL PK 18MX9.0A
No California		 W MEMORIAL-ALBANY 18MX9.0A
No California
Nancy Wilson (4.20) 7-5
6-1		 Lilana Spindler (4.33)
Damon Levy (4.10)
Match: 4.44 Rating: 4.27
02/22/2025 D3 Mixed 18+
9.0
RICHMOND TA/NICHOLL PK 18MX9.0A
No California		 W SAN PABLO PK 18MX9.0A
No California
Shin Koo (-----) 6-0
6-0		 Default
Match: ----- Rating: -----
02/15/2025 D2 Mixed 18+
9.0
RICHMOND TA/NICHOLL PK 18MX9.0A
No California		 W SAN PABLO PK 18MX9.0A
No California
Nancy Wilson (4.17) 6-0
5-7
1-0		 Henry Qi (3.82)
Alexandra Kahn (-----)
Match: S Rating: 4.22
01/26/2025 D3 Combo
7.5
Sectionals
RICHMOND TA/NICHOLL PK CM7.5A
No California		 L CLOVIS TC/BUCHANAN HS CM7.5A
No California
Marco Valgonio (3.69) 7-5
6-2		 Joseph Duong (4.20)
Jagmit Dhah (3.56)
Match: 3.97 Rating: -----
01/26/2025 D2 Combo
7.5
Sectionals
RICHMOND TA/NICHOLL PK CM7.5A
No California		 W ED MITCHELL PK CM7.5A
No California
Marco Valgonio (3.69) 6-4
4-6
1-0		 Chandra Mahadevan (4.04)
Vinaykumar Bhagwat (3.64)
Match: 4.13 Rating: -----
01/25/2025 D2 Combo
7.5
Sectionals
RICHMOND TA/NICHOLL PK CM7.5A
No California		 W SUNNYVALE TC/SUNNYVALE MTC CM7.5A
No California
Marco Valgonio (3.69) 6-1
3-6
1-0		 Jaewan Mun (4.14)
Wade Conklin (3.67)
Match: 4.26 Rating: -----
01/24/2025 D3 Combo
8.5
Sectionals
RICHMOND TA/NICHOLL PK CM8.5A
No California		 L COASTSIDE TA/HALF MOON BAY HS CM8.5A
No California
Jason Pfeifle (3.90) 6-2
7-5		 Jonathon Feyerherm (4.07)
Matthew Goodyear (4.02)
Match: 4.03 Rating: -----
01/24/2025 D1 Combo
7.5
Sectionals
RICHMOND TA/NICHOLL PK CM7.5A
No California		 W GOLDMAN TC CM7.5A
No California
Salvatore Marchetti (3.44) 3-6
7-6
1-0		 Lawrence Coburn (4.01)
Bryan Kurtz (3.51)
Match: 4.12 Rating: -----
01/24/2025 D1 Combo
7.5
Sectionals
RICHMOND TA/NICHOLL PK CM7.5A
No California		 W RENO TENNIS CENTER CM7.5A
No California
Salvatore Marchetti (3.44) 7-5
6-2		 Joseph Cifelli (3.75)
Taylor Shigihara (3.89)
Match: 4.38 Rating: -----
11/23/2024 D3 Combo
7.5
Flight
RICHMOND TA/NICHOLL PK CM7.5A
No California		 W CLAREMONT R and S CM7.5B
No California
Marco Valgonio (3.69) 6-2
5-7
1-0		 Benjamin Brown (3.70)
Will Sheldon (4.05)
Match: 4.21 Rating: -----
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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