Statistical Analysis and Estimated Tennis Ratings to the 10,000th of a Point
Match History (2023) View Advanced Player Stats
Robert Cal (Libertyville, IL)
Male 		3.5 C
12/31/2024
Estimated Dynamic Rating 3.4853
2/12/2025
Projected Year End Rating ------
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3.5 Rating Meter
Rating Meter
3.0001 - 3.5000
Recent Match History Current Rating History
2023 Adult 40+ Season
League/Level Total
Matches		 Win Loss Tie WPct Total
Sets		 Win Loss WPct Total
Games		 Win Loss WPct Defaults
Adult 40+ 3.5 24 18 6 0 75.0 59 38 21 64.4 437 247 190 56.5 0
Total 24 18 6 0 75.0 59 38 21 64.4 437 247 190 56.5 0
Match Date League Team Court Partner Opponent(s) W/L Result Match Rating
11/19/2023 Adult 40+
3.5		 NITA E 35M40b MT Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.76) 		David Baird
(3.50)
Bob King
(3.44) 		W 2-6
6-3
1-0		 3.35 3.48
10/28/2023 Adult 40+
3.5		 NITA E 35M40b MT Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.67) 		Larry Arnold
(2.84)
Hugo Salgado
(3.25) 		W 6-1
6-3		 3.38 3.51
10/22/2023 Adult 40+
3.5		 NITA E 35M40b MT Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.72) 		Muhammad Akbar
(3.60)
Leo Kanev
(3.54) 		L 6-7
5-3
1-0		 3.44 3.52
10/14/2023 Adult 40+
3.5		 NITA E 35M40b MT Bannockburn (Cal/Sheldon)
Midwest		 D2 Matt Newman
(3.63) 		Satya Mehta
(3.47)
David Mack
(3.24) 		L 6-4
6-4		 S 3.56
07/30/2023 Adult 40+
3.5
Districts		 NITA E 35M40b Midtown Banockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.64) 		John simonetti
(3.56)
Keith Sgariglia
(3.54) 		W 6-4
6-2		 3.68 3.56
07/30/2023 Adult 40+
3.5
Districts		 NITA E 35M40b Midtown Banockburn (Cal/Sheldon)
Midwest		 D2 Derek Majka
(3.65) 		Vitalii Miziuk
(3.58)
Shawn Erickson
(3.48) 		W 6-4
1-6
1-0		 3.40 3.51
07/22/2023 Adult 40+
3.5		 NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.65) 		Ivaylo Peroussanov
(3.42)
Cristobal GARCIA
(3.70) 		W 4-6
7-6
1-0		 3.49 3.52
07/16/2023 Adult 40+
3.5		 NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.69) 		Gregory Franzo
(2.89)
James Jones
(3.39) 		W 6-0
6-1		 3.56 3.52
07/12/2023 Adult 40+
3.5		 NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.62) 		Dennis Abdelnour
(3.49)
Andrew Zens
(3.38) 		W 6-2
6-0		 3.76 3.56
07/09/2023 Adult 40+
3.5		 NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.61) 		Jonathan Gawlak
(3.61)
Hunter Wiggins
(3.54) 		L 2-6
6-1
1-0		 3.44 3.49
06/28/2023 Adult 40+
3.5		 NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.63) 		Ivaylo Peroussanov
(3.36)
Jatin Vasa
(3.40) 		W 6-2
3-6
1-0		 3.38 3.48
06/25/2023 Adult 40+
3.5		 NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.66) 		Gary Gardner
(3.22)
Chris Beissner
(3.40) 		W 6-1
6-2		 3.57 3.51
05/31/2023 Adult 40+
3.5		 NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.52) 		Jonathan Gawlak
(3.63)
Leo Kanev
(3.47) 		W 5-7
6-4
1-0		 3.56 3.50
05/20/2023 Adult 40+
3.5		 NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D3 Scott Smith
(3.44) 		Dennis Giles
(3.16)
Craig Williams
(3.44) 		W 6-3
7-5		 3.44 3.49
04/29/2023 Adult 40+
3.5		 NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.50) 		Kedar Bhat
(3.23)
Billy Lin
(3.42) 		W 3-6
6-2
1-0		 3.38 3.48
04/16/2023 Adult 40+
3.5		 NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.50) 		Chris O'Malley
(3.39)
Keith Sgariglia
(3.57) 		W 7-6
2-5
1-0		 3.47 3.49
03/26/2023 Adult 40+
3.5		 NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.46) 		Chris Goedde
(3.24)
David Louis
(3.28) 		W 6-1
6-1		 3.65 3.53
03/18/2023 Adult 40+
3.5		 NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.46) 		Michael Lawver
(3.45)
Cody Schullo
(3.53) 		L 6-1
7-5		 3.28 3.46
02/25/2023 Adult 40+
3.5		 NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.54) 		Cristobal GARCIA
(3.70)
Jatin Vasa
(3.25) 		L 7-5
6-3		 3.35 3.47
02/12/2023 Adult 40+
3.5		 NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.48) 		Richard McLean
(3.50)
John simonetti
(3.53) 		W 6-4
6-0		 3.80 3.55
01/29/2023 Adult 40+
3.5		 NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.42) 		Michael Lawver
(3.41)
Steven Simons
(3.10) 		W 3-6
6-2
1-0		 S 3.47
01/22/2023 Adult 40+
3.5		 NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.42) 		Brian Quan
(3.42)
John Yim
(3.00) 		W 6-3
6-1		 S 3.47
01/15/2023 Adult 40+
3.5		 NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Geoffrey Miller
(3.31) 		Jatin Vasa
(3.25)
Cristobal GARCIA
(-----) 		L 6-3
5-3		 S 3.47
01/08/2023 Adult 40+
3.5		 NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 D1 Derek Majka
(3.42) 		Chad Anderson
(3.36)
Howard Gartzman
(3.39) 		W 5-7
6-2
1-0		 3.47 3.47
11/19/2023 D1 Adult 40+
3.5
NITA E 35M40b MT Bannockburn (Cal/Sheldon)
Midwest		 W NITA E 35M40a Oak Brook (Franzo)
Midwest
Derek Majka (3.76) 2-6
6-3
1-0		 David Baird (3.50)
Bob King (3.44)
Match: 3.35 Rating: 3.48
10/28/2023 D1 Adult 40+
3.5
NITA E 35M40b MT Bannockburn (Cal/Sheldon)
Midwest		 W NITA E 35M40c NMH Huntley (Lawver/Hankins)
Midwest
Derek Majka (3.67) 6-1
6-3		 Larry Arnold (2.84)
Hugo Salgado (3.25)
Match: 3.38 Rating: 3.51
10/22/2023 D1 Adult 40+
3.5
NITA E 35M40b MT Bannockburn (Cal/Sheldon)
Midwest		 L NITA E 35M40h Tam (Woods/Rykus)
Midwest
Derek Majka (3.72) 6-7
5-3
1-0		 Muhammad Akbar (3.60)
Leo Kanev (3.54)
Match: 3.44 Rating: 3.52
10/14/2023 D2 Adult 40+
3.5
NITA E 35M40b MT Bannockburn (Cal/Sheldon)
Midwest		 L NITA E 35M40f Naperville (Esancy)
Midwest
Matt Newman (3.63) 6-4
6-4		 Satya Mehta (3.47)
David Mack (3.24)
Match: S Rating: 3.56
07/30/2023 D1 Adult 40+
3.5
Districts
NITA E 35M40b Midtown Banockburn (Cal/Sheldon)
Midwest		 W NITA S 35M40f Oak Brook (Franzo)
Midwest
Derek Majka (3.64) 6-4
6-2		 John simonetti (3.56)
Keith Sgariglia (3.54)
Match: 3.68 Rating: 3.56
07/30/2023 D2 Adult 40+
3.5
Districts
NITA E 35M40b Midtown Banockburn (Cal/Sheldon)
Midwest		 W NITA A40&O 3.5M/Miller
Midwest
Derek Majka (3.65) 6-4
1-6
1-0		 Vitalii Miziuk (3.58)
Shawn Erickson (3.48)
Match: 3.40 Rating: 3.51
07/22/2023 D1 Adult 40+
3.5
NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 W NITA S 35M40g River Trails (Miller/Cislak)
Midwest
Derek Majka (3.65) 4-6
7-6
1-0		 Ivaylo Peroussanov (3.42)
Cristobal GARCIA (3.70)
Match: 3.49 Rating: 3.52
07/16/2023 D1 Adult 40+
3.5
NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 W NITA S 35M40d Naperville (Esancy)
Midwest
Derek Majka (3.69) 6-0
6-1		 Gregory Franzo (2.89)
James Jones (3.39)
Match: 3.56 Rating: 3.52
07/12/2023 D1 Adult 40+
3.5
NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 W NITA S 35M40c River Trails (Rogowski/Bhat)
Midwest
Derek Majka (3.62) 6-2
6-0		 Dennis Abdelnour (3.49)
Andrew Zens (3.38)
Match: 3.76 Rating: 3.56
07/09/2023 D1 Adult 40+
3.5
NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 L NITA S 35M40f Oak Brook (Franzo)
Midwest
Derek Majka (3.61) 2-6
6-1
1-0		 Jonathan Gawlak (3.61)
Hunter Wiggins (3.54)
Match: 3.44 Rating: 3.49
06/28/2023 D1 Adult 40+
3.5
NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 W NITA S 35M40g River Trails (Miller/Cislak)
Midwest
Derek Majka (3.63) 6-2
3-6
1-0		 Ivaylo Peroussanov (3.36)
Jatin Vasa (3.40)
Match: 3.38 Rating: 3.48
06/25/2023 D1 Adult 40+
3.5
NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 W NITA S 35M40b NM Huntley (Lawver/Hankins)
Midwest
Derek Majka (3.66) 6-1
6-2		 Gary Gardner (3.22)
Chris Beissner (3.40)
Match: 3.57 Rating: 3.51
05/31/2023 D1 Adult 40+
3.5
NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 W NITA S 35M40f Oak Brook (Franzo)
Midwest
Derek Majka (3.52) 5-7
6-4
1-0		 Jonathan Gawlak (3.63)
Leo Kanev (3.47)
Match: 3.56 Rating: 3.50
05/20/2023 D3 Adult 40+
3.5
NITA S 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 W NITA S 35M40b NM Huntley (Lawver/Hankins)
Midwest
Scott Smith (3.44) 6-3
7-5		 Dennis Giles (3.16)
Craig Williams (3.44)
Match: 3.44 Rating: 3.49
04/29/2023 D1 Adult 40+
3.5
NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 W NITA W 35M40b River Trails (Rogowski)
Midwest
Derek Majka (3.50) 3-6
6-2
1-0		 Kedar Bhat (3.23)
Billy Lin (3.42)
Match: 3.38 Rating: 3.48
04/16/2023 D1 Adult 40+
3.5
NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 W NITA W 35M40d Oak Brook (Franzo)
Midwest
Derek Majka (3.50) 7-6
2-5
1-0		 Chris O'Malley (3.39)
Keith Sgariglia (3.57)
Match: 3.47 Rating: 3.49
03/26/2023 D1 Adult 40+
3.5
NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 W NITA W 35M40b River Trails (Rogowski)
Midwest
Derek Majka (3.46) 6-1
6-1		 Chris Goedde (3.24)
David Louis (3.28)
Match: 3.65 Rating: 3.53
03/18/2023 D1 Adult 40+
3.5
NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 L NITA W 35M40g NM Huntley (Lawver/Hankins)
Midwest
Derek Majka (3.46) 6-1
7-5		 Michael Lawver (3.45)
Cody Schullo (3.53)
Match: 3.28 Rating: 3.46
02/25/2023 D1 Adult 40+
3.5
NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 L NITA A40&O 3.5M/Miller
Midwest
Derek Majka (3.54) 7-5
6-3		 Cristobal GARCIA (3.70)
Jatin Vasa (3.25)
Match: 3.35 Rating: 3.47
02/12/2023 D1 Adult 40+
3.5
NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 W NITA W 35M40d Oak Brook (Franzo)
Midwest
Derek Majka (3.48) 6-4
6-0		 Richard McLean (3.50)
John simonetti (3.53)
Match: 3.80 Rating: 3.55
01/29/2023 D1 Adult 40+
3.5
NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 W NITA W 35M40g NM Huntley (Lawver/Hankins)
Midwest
Derek Majka (3.42) 3-6
6-2
1-0		 Michael Lawver (3.41)
Steven Simons (3.10)
Match: S Rating: 3.47
01/22/2023 D1 Adult 40+
3.5
NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 W NITA W 35M40e Five Star (Berry)
Midwest
Derek Majka (3.42) 6-3
6-1		 Brian Quan (3.42)
John Yim (3.00)
Match: S Rating: 3.47
01/15/2023 D1 Adult 40+
3.5
NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 L NITA A40&O 3.5M/Miller
Midwest
Geoffrey Miller (3.31) 6-3
5-3		 Jatin Vasa (3.25)
Cristobal GARCIA (-----)
Match: S Rating: 3.47
01/08/2023 D1 Adult 40+
3.5
NITA W 35M40a Midtown Bannockburn (Cal/Sheldon)
Midwest		 W NITA W 35M40c TAM (Woods)
Midwest
Derek Majka (3.42) 5-7
6-2
1-0		 Chad Anderson (3.36)
Howard Gartzman (3.39)
Match: 3.47 Rating: 3.47
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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