2025 Club Standings

2025 San Diego Backgammon Club rankings through January 15, 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

12

3

80.00%

2.3

5

1.5

1

0

    1,989

38

2

Raid Weston

9

3

75.00%

1.7

3

1

1

0

    1,651

29

3

Michael Pines

9

5

64.29%

1.1

5

1

0.5

0.5

    1,642

27

4

Roger Alves

9

3

75.00%

1.7

4

1

0

0.5

    1,670

23

5

Jamshid

6

3

66.67%

1.0

3

0.5

1

0

    1,657

20

6

Kutaiba Almukhtar

8

8

50.00%

0.0

6

1

0

0

    1,539

20

7

Matt Schoonmaker

4

2

66.67%

0.8

2

1

0

0

    1,780

16

8

Masoud Sadrieh

7

4

63.64%

0.9

4

0

0.5

1

    1,567

15

9

Allen Tish

6

3

66.67%

1.0

3

0

1

0

    1,817

14

10

Mark Weiner

5

2

71.43%

1.1

2

0

1

0

    1,732

13

11

Sam Rishmawi

5

3

62.50%

0.7

2

0

1

0

    1,638

13

12

Abbas Anvar

6

6

50.00%

0.0

4

0

0

1.5

    1,589

12

13

David Gray

5

2

71.43%

1.1

3

0.5

0

0

    1,741

11

14

Charles Schleicher

5

2

71.43%

1.1

2

0

0

1

    1,391

9

15

Tom Cox

3

2

60.00%

0.4

2

0

0.5

0

    1,576

7

16

Blake Beber

3

3

50.00%

0.0

2

0

0

1

    1,725

7

17

Fahri Cimen

3

3

50.00%

0.0

2

0

0

1

    1,538

7

18

Kubilay “Koby” Ugurlu

6

8

42.86%

-0.5

5

0

0

0

    1,688

6

19

Justin Sheftell

5

4

55.56%

0.3

4

0

0

0

    1,712

5

20

Bijan Rahmani

3

3

50.00%

0.0

2

0

0

0

    1,611

3

21

Zee

3

3

50.00%

0.0

2

0

0

0

    1,523

3

22

Avo Fronjian

3

4

42.86%

-0.4

3

0

0

0

    1,631

3

23

Manny Armesto

3

6

33.33%

-1.0

3

0

0

0

    1,449

3

24

Daniel  Friedman

2

1

66.67%

0.6

1

0

0

0

    1,529

2

25

Matthew Farjo

2

1

66.67%

0.6

1

0

0

0

    1,487

2

26

Richard Tucker

2

2

50.00%

0.0

1

0

0

0

    1,497

2

27

Dan Brown

2

2

50.00%

0.0

1

0

0

0

    1,342

2

28

Victor Mizrachi

2

3

40.00%

-0.4

2

0

0

0

    1,372

2

29

Paul Palomino

2

5

28.57%

-1.1

3

0

0

0

    1,438

2

30

Ali B.

1

1

50.00%

0.0

1

0

0

0

    1,638

1

31

Robert Burns

1

1

50.00%

0.0

1

0

0

0

    1,565

1

32

Chanin Tangtartharakul

1

1

50.00%

0.0

1

0

0

0

    1,548

1

33

Kavin Tangtartharakul

1

1

50.00%

0.0

1

0

0

0

    1,512

1

34

Kevin Creps

1

2

33.33%

-0.6

1

0

0

0

    1,527

1

35

Ryan Healey

1

2

33.33%

-0.6

1

0

0

0

    1,511

1

36

Jeff Ackerman

1

2

33.33%

-0.6

1

0

0

0

    1,434

1

37

Kiska Higgs

1

3

25.00%

-1.0

2

0

0

0

    1,441

1

38

Victoria Healey

1

3

25.00%

-1.0

2

0

0

0

    1,370

1

39

Krista Hansen

1

3

25.00%

-1.0

2

0

0

0

    1,348

1

40

Edna Pines

1

3

25.00%

-1.0

2

0

0

0

    1,270

1

41

Anthony Niakiani

1

5

16.67%

-1.6

3

0

0

0

    1,830

1

42

Kevin Duc

3

1

75.00%

1.0

1

0

0

1

    1,538

0

43

Tom Keisler

2

1

66.67%

0.6

1

0

0

0

    1,633

0

44

Susanne Tucker

1

1

50.00%

0.0

1

0

0

0

    1,505

0

45

Mauricio

1

2

33.33%

-0.6

1

0

0

0

    1,486

0

46

Andrew Stoen

1

3

25.00%

-1.0

2

0

0

0

    1,446

0

47

Nancy  Friedman

0

1

0.00%

-1.0

1

0

0

0

    1,477

0

48

Sam Mahood

0

1

0.00%

-1.0

1

0

0

0

    1,422

0

49

Ellie Ackerman

0

2

0.00%

-1.4

1

0

0

0

    1,472

0

50

Noah Mayeda

0

2

0.00%

-1.4

1

0

0

0

    1,467

0

51

Regan Lambeth

0

2

0.00%

-1.4

1

0

0

0

    1,459

0

52

Jay Srion

0

2

0.00%

-1.4

1

0

0

0

    1,458

0

53

Duke S

0

2

0.00%

-1.4

1

0

0

0

    1,455

0

54

Abby Ackerman

0

2

0.00%

-1.4

1

0

0

0

    1,440

0

55

Jeffrey Light

0

2

0.00%

-1.4

1

0

0

0

    1,398

0

56

Jen Brown

0

2

0.00%

-1.4

1

0

0

0

    1,379

0

57

Buffy Zehnder

0

2

0.00%

-1.4

1

0

0

0

    1,336

0

58

Byron Georgiou

0

2

0.00%

-1.4

1

0

0

0

    1,323

0

59

Colin Baehman

0

4

0.00%

-2.0

2

0

0

0

    1,411

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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