2025 Club Standings

2025 San Diego Backgammon Club rankings through April 23, 2025.
For previous year’s standings, see: 2023 and 2024 final rankings.

RANK

PLAYER

MATCH WINS

MATCH LOSSES

WIN PCT

z-score

EVENTS

1ST PLACE FINISHES

2ND PLACE FINISHES

3RD PLACE FINISHES

Elo

SDBC Ranking Points

1

Frank Frigo

45

18

71.43%

3.4

23

6

2

0

    1,974

133

2

Michael Pines

45

34

56.96%

1.2

27

1

6.5

4.5

    1,661

127

3

David Gray

40

24

62.50%

2.0

23

4

1.5

0

    1,782

100

4

Justin Sheftell

40

29

57.97%

1.3

27

2

3.5

1

    1,729

96

5

Allen Tish

37

24

60.66%

1.7

19

2

3

2

    1,799

93

6

Blake Beber

40

25

61.54%

1.9

22

3

0.5

3

    1,763

92

7

Roger Alves

34

21

61.82%

1.8

18

2.5

0.5

3.5

    1,662

82

8

Sam Rishmawi

30

24

55.56%

0.8

17

1

3

2

    1,626

74

9

Kutaiba Almukhtar

34

41

45.33%

-0.8

28

2

0

3

    1,544

70

10

Jon Vietor

27

16

62.79%

1.7

16

2

1.5

0

    1,804

63

11

Masoud Sadrieh

32

20

61.54%

1.7

18

0

2.5

2.5

    1,616

62

12

Anthony Niakiani

25

21

54.35%

0.6

17

1.5

1.5

0.5

    1,820

57

13

Mark Weiner

30

34

46.88%

-0.5

25

0

2.5

1

    1,662

54

14

Jamshid

21

17

55.26%

0.6

14

1.5

1

1.5

    1,671

53

15

Erik Kipperman

20

9

68.97%

2.0

10

2

1

0

    1,535

52

16

Raid Westin

30

29

50.85%

0.1

22

1

1

0.5

    1,588

52

17

Manny Armesto

26

29

47.27%

-0.4

20

1

1

0.5

    1,497

48

18

Kubilay “Koby” Ugurlu

28

27

50.91%

0.1

20

1

0

1

    1,695

44

19

Matthew Farjo

23

36

38.98%

-1.7

22

1

1

0

    1,465

43

20

Charles Schleicher

18

7

72.00%

2.2

8

1

0

3

    1,454

42

21

Matt Schoonmaker

12

9

57.14%

0.7

7

1.5

0.5

0

    1,769

34

22

Kevin Duc

18

16

52.94%

0.3

12

0

1

2

    1,565

34

23

Fahri Cimen

12

12

50.00%

0.0

8

0

2

1

    1,544

32

24

David Brown

11

6

64.71%

1.2

5

1

1

0

    1,564

31

25

Victor Mizrachi

12

13

48.00%

-0.2

10

1

0

1

    1,447

28

26

Abbas Anvar

16

18

47.06%

-0.3

12

0

0

2.5

    1,580

26

27

Paul Bay

10

6

62.50%

1.0

5

0

1

1

    1,646

22

28

Paul Palomino

11

16

40.74%

-1.0

10

0

1

0

    1,447

19

29

Avo Fronjian

19

26

42.22%

-1.0

19

0

0

0

    1,593

19

30

Serdar Altok

6

3

66.67%

1.0

3

1

0

0

    1,585

18

31

Volkan Celik

6

7

46.15%

-0.3

5

1

0

0

    1,521

18

32

Dorn Bishop

4

0

100.00%

2.0

1

1

0

0

    1,729

16

33

Byrne Larsen

4

0

100.00%

2.0

1

1

0

0

    1,620

16

34

Isaac Cook

4

0

100.00%

2.0

1

1

0

0

    1,569

16

35

Edna Pines

7

14

33.33%

-1.5

8

0

1

0

    1,277

15

36

Yossi Ram

9

15

37.50%

-1.2

9

0

0

1

    1,469

13

37

Mike Stern

8

9

47.06%

-0.2

7

0

0

1

    1,543

12

38

Alexsander Tamari

8

9

47.06%

-0.2

5

0

0

1

    1,337

12

39

Tom Keisler

7

3

70.00%

1.3

3

0

0

1

    1,694

11

40

Steve Miller

3

1

75.00%

1.0

1

0

1

0

    1,711

11

41

Mackenzie

3

1

75.00%

1.0

1

0

1

0

    1,568

11

42

Bijan Rahmani

7

6

53.85%

0.3

4

0

0

1

    1,612

11

43

Abby Ackerman

9

18

33.33%

-1.7

11

0

0

0.5

    1,396

11

44

Tom Cox

6

7

46.15%

-0.3

5

0

0.5

0

    1,557

10

45

Saad Mahfoodah

5

7

41.67%

-0.6

5

0

0.5

0

    1,521

9

46

Ali B.

8

11

42.11%

-0.7

7

0

0

0

    1,615

8

47

Zee

7

9

43.75%

-0.5

6

0

0

0

    1,516

7

48

Victoria Healey

5

12

29.41%

-1.7

8

0

0

0

    1,351

5

49

Ryan Healey

5

17

22.73%

-2.6

10

0

0

0

    1,404

5

50

Rostam Javidan

2

1

66.67%

0.6

1

0

0

0.5

    1,525

4

51

Travis Saling

2

2

50.00%

0.0

2

0

0

0.5

    1,501

4

52

Lorena Garcia

1

1

50.00%

0.0

1

0

0

0.5

    1,502

3

53

Lornie Kuhle

3

4

42.86%

-0.4

3

0

0

0

    1,570

3

54

Dan Brown

3

5

37.50%

-0.7

3

0

0

0

    1,322

3

55

Robert Burns

3

6

33.33%

-1.0

4

0

0

0

    1,550

3

56

Mona Mazza

2

1

66.67%

0.6

1

0

0

0

    1,532

2

57

Daniel  Friedman

2

1

66.67%

0.6

1

0

0

0

    1,529

2

58

Richard Tucker

2

2

50.00%

0.0

1

0

0

0

    1,497

2

59

Jimmy Campbell

2

2

50.00%

0.0

2

0

0

0

    1,495

2

60

Nana

2

2

50.00%

0.0

1

0

0

0

    1,491

2

61

Nader Zarrin

2

2

50.00%

0.0

2

0

0

0

    1,424

2

62

Cliff Johnston

2

3

40.00%

-0.4

2

0

0

0

    1,496

2

63

Victor Elkind

2

3

40.00%

-0.4

2

0

0

0

    1,490

2

64

Amin Mazaeri

2

3

40.00%

-0.4

2

0

0

0

    1,476

2

65

Steve Schraibman

2

4

33.33%

-0.8

3

0

0

0

    1,460

2

66

Osvaldo Topete

2

4

33.33%

-0.8

2

0

0

0

    1,379

2

67

Shayan Sombolestani

2

4

33.33%

-0.8

3

0

0

0

    1,361

2

68

Olympia Georgiou

2

5

28.57%

-1.1

3

0

0

0

    1,384

2

69

Kevin Creps

2

6

25.00%

-1.4

3

0

0

0

    1,498

2

70

Maan Khedraki

2

6

25.00%

-1.4

3

0

0

0

    1,442

2

71

Andrew Stoen

2

6

25.00%

-1.4

4

0

0

0

    1,415

2

72

Byron Georgiou

2

8

20.00%

-1.9

4

0

0

0

    1,299

2

73

Colin Baehman

2

13

13.33%

-2.8

7

0

0

0

    1,307

2

74

Chanin Tangtartharakul

1

1

50.00%

0.0

1

0

0

0

    1,548

1

75

Kavin Tangtartharakul

1

1

50.00%

0.0

1

0

0

0

    1,512

1

76

Mike Schnur

1

1

50.00%

0.0

1

0

0

0

    1,506

1

77

Susanne Tucker

1

1

50.00%

0.0

1

0

0

0

    1,505

1

78

Bill Burton

1

1

50.00%

0.0

1

0

0

0

    1,503

1

79

Guy Fritz

1

1

50.00%

0.0

1

0

0

0

    1,501

1

80

Tod Donchev

1

1

50.00%

0.0

1

0

0

0

    1,499

1

81

Matt Spear

1

1

50.00%

0.0

1

0

0

0

    1,494

1

82

Anita Elkind

1

1

50.00%

0.0

1

0

0

0

    1,493

1

83

Juan Alvarado

1

1

50.00%

0.0

1

0

0

0

    1,486

1

84

Mike Kay

1

1

50.00%

0.0

1

0

0

0

    1,457

1

85

Katina T.

1

1

50.00%

0.0

1

0

0

0

    1,446

1

86

Nagy Nosseir

1

1

50.00%

0.0

1

0

0

0

    1,419

1

87

Karam Khalaf

1

1

50.00%

0.0

1

0

0

0

    1,368

1

88

Bijie Ding

1

2

33.33%

-0.6

1

0

0

0

    1,506

1

89

Mauricio

1

2

33.33%

-0.6

1

0

0

0

    1,486

1

90

David Ruch

1

2

33.33%

-0.6

1

0

0

0

    1,485

1

91

Moses Moses

1

2

33.33%

-0.6

1

0

0

0

    1,480

1

92

Ali Kahani

1

2

33.33%

-0.6

1

0

0

0

    1,480

1

93

Sam

1

2

33.33%

-0.6

1

0

0

0

    1,449

1

94

Sam Mahood

1

2

33.33%

-0.6

2

0

0

0

    1,430

1

95

Kyle Harman

1

3

25.00%

-1.0

2

0

0

0

    1,466

1

96

Jeffrey Light

1

3

25.00%

-1.0

2

0

0

0

    1,406

1

97

Krista Hansen

1

3

25.00%

-1.0

2

0

0

0

    1,348

1

98

Michael Whitley

1

4

20.00%

-1.3

2

0

0

0

    1,437

1

99

Jeff Ackerman

1

4

20.00%

-1.3

2

0

0

0

    1,392

1

100

Noah Mayeda

1

5

16.67%

-1.6

3

0

0

0

    1,420

1

101

Kiska Higgs

1

5

16.67%

-1.6

3

0

0

0

    1,402

1

102

Carlos Garcia

0

1

0.00%

-1.0

1

0

0

0

    1,482

0

103

Nancy  Friedman

0

1

0.00%

-1.0

1

0

0

0

    1,477

0

104

Santiago Pinon

0

2

0.00%

-1.4

1

0

0

0

    1,494

0

105

Ellie Ackerman

0

2

0.00%

-1.4

1

0

0

0

    1,472

0

106

Dave Zavala

0

2

0.00%

-1.4

1

0

0

0

    1,469

0

107

Regan Lambeth

0

2

0.00%

-1.4

1

0

0

0

    1,459

0

108

Alex Goldsborough

0

2

0.00%

-1.4

1

0

0

0

    1,459

0

109

Jay Srion

0

2

0.00%

-1.4

1

0

0

0

    1,458

0

110

Juan Carlos Garcia

0

2

0.00%

-1.4

1

0

0

0

    1,458

0

111

Joanna Has

0

2

0.00%

-1.4

1

0

0

0

    1,458

0

112

Tim Hallisay

0

2

0.00%

-1.4

1

0

0

0

    1,458

0

113

Duke S

0

2

0.00%

-1.4

1

0

0

0

    1,455

0

114

Mustafa Shaikh

0

2

0.00%

-1.4

1

0

0

0

    1,454

0

115

Ariel Linder

0

2

0.00%

-1.4

1

0

0

0

    1,452

0

116

Amy Pope

0

2

0.00%

-1.4

1

0

0

0

    1,452

0

117

Nawar Abdlnoor

0

2

0.00%

-1.4

1

0

0

0

    1,446

0

118

Jen Brown

0

2

0.00%

-1.4

1

0

0

0

    1,379

0

119

Buffy Zehnder

0

2

0.00%

-1.4

1

0

0

0

    1,336

0

120

Jordan Ramsey

0

2

0.00%

-1.4

1

0

0

0

    1,305

0

121

Ian Elkind

0

4

0.00%

-2.0

2

0

0

0

    1,419

0

Z-SCORE – a statistic used to measure results more accurately with consideration of total matches played, and reflects the number of standard deviations from the mean performance.  The mean is assumed to be a 50/50 coin flip.

SDBG RANKING POINTS – Each match win is worth 1 point. For a standard sixteen person bracket, 1st place receives 12 points, 2nd place receives 8 points, and 3rd place receives 4 points. Splits of 1st/2nd each receive 10 points, and splits of 3rd each receive 2 points. For an eight person bracket, ranking points for 1st/2nd/3rd are halved. Forfeited matches and byes are not scored.

Elo – A rating system that measures the relative strength of a player. A player’s Elo rating increases when they win, and decreases when they lose. The amount of the increase/decrease depends on the strength of their opponent, how long the match is (e.g. 7 points or 5 points), and how many matches the player has played. The difference in Elo ratings between two players can estimate each player’s win chances in the match based on a formula. For example, a player whose rating is 100 points greater than their opponent’s is expected to win a 7 point match 58% of the time. Every player starts with a rating of 1500.

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