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WDD Battle Ranking System Scoring System Event's report Statistics

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Dip Pouch Tournament Rating
AuthorMatt Shields Last Update2019-10-09
International ranking National ranking
List of included tournaments List of included circuits
Year
Permanent
20162015201420132012201120102009
20082007200620052004200320022001

Each player begins with an initial rating of 40 before their first tournament. After each event, a player's final placement (e.g. 1st, 2nd, 3rd, etc.) is converted to a percentile score.

The formula used is: (([Number of Players in the event]+0.5-[Placement])/[Number of Players in the event])*100

If the event was the World Championship, the tournament value is 20.
Otherwise, if the tournament has only one round, the tournament value is equal to the number of players in the event divided by 7, plus 2. If the event has more than one round, the tournament value is equal to the number of players in the event divided by 3.5, plus two. ( (#players/3.5)+2 ). However, the maximum tournament value for any non-world championship event is 15.

Events before 2001, with the exception of World Championships, have a tournament value of zero, meaning they have no effect on ratings. The theory is that results be based only on the last ten years of competitive play.

As an example of calculating new ratings, suppose a player enters an event with a rating of 55. Suppose also that they finish in 8th place out of 65 players. The player's percentile score is (65 + 0.5 - 8)/65 * 100 = 88.46. A 65 player event would have a tournament value of (65/3.5) +2 = 20.57. However, since the maximum tournament value is 15, that will be the value for this event. Therefore, this player's rating will move 15% of the distance from 55 to 88.46. The difference between 88.46 and 55 is 33.46. 15% of 33.46 is 5.019. Therefore, we add 5.019 points to this player's rating as a results of this event, meaning their rating increases from 55 to 60.019.


WAC 1 2003
Date November 1, 2003 Place Seattle
Number of players31 Number of rounds2 Number of boards8
Coeff 110.86 Coeff 2- Coeff 3-

RankFirstName LastNameLoc.Nat.Score
1Kevin KACMARYNSKI98.39
2Andy MARSHALL95.16
3Catherine WILLIAMS91.94
4Ken LEMERE88.71
5Edi BIRSAN85.48
6Mary KUHNER82.26
7Edward HAWTHORNE79.03
8Eric MACHORRO75.81
9Doug SCOTT72.58
10Robert O'CONNOR69.35
11Brad ROSMAN66.13
12Brad BASDEN62.90
13Stephen WEINGARTEN59.68
14Jake MANNIX56.45
15Matt SHIELDS53.23
16Benjamin CHENG50.00
17Trindon WILKERSON46.77
18Steve MOONEY43.55
19Ryan BLANEY40.32
20Fred SUTHERLAND37.10
21Nathan BARNES33.87
22Andrew NICK30.65
23Doug BRAY27.42
24Carl HIRSCHMAN24.19
25John ALLEY20.97
26Tristram BOGART17.74
26Buz EDDY17.74
26Eric MEAD17.74
26Dave ROSOFF17.74
26Debbie SEIDELL17.74
26Mark ZOFFEL17.74

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