World Diplomacy Database

The World Diplomacy Database


Home Tournament League Circuit Player
WDD Battle Ranking System Scoring System Event's report Statistics

Other ranking system

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

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.

World DipCon XXII 2012
Weasel Moot VI & DipCon 45
Date August 10-12, 2012 Place Chicago
Number of players80 Number of rounds5 Number of boards46
Coeff 120.00 Coeff 2- Coeff 3-

RankFirstName LastNameLoc.Nat.Score
1Michael BINDER99.38
3Matt SHIELDS96.88
4Adam SIGAL95.63
5Robert ROUSSE94.38
6Edi BIRSAN93.13
7Steve COOLEY91.88
8Peter YEARGIN90.63
9Aash ANAND89.38
10Peter LOKKEN88.13
11Doug MOORE86.88
12Mike HALL85.63
13David MALETSKY84.38
14Christian MACDONALD83.13
15Roland COOKE81.88
16Chris MARTIN80.63
17John GRAMILA79.38
18Emmanuel DU PONTAVICE78.13
19Don WILLIAMS76.88
20Christian KLINE75.63
21Christian PEDONE74.38
22Matt SUNDSTROM73.13
23Laurent JOLY71.88
24Jay HEUMANN70.63
25Phil WEISSERT69.38
26Peter MCNAMARA68.13
27Nicolas SAHUGUET66.88
28Adam BEREY65.63
29Grant STEEL64.38
30Rick DESPER63.13
31Brian SHELDEN61.88
32Andrew BARTLEIN60.63
33Nick ROHN59.38
34Andy BARTALONE58.13
35Andrew GOFF56.88
36Graham WOODRING55.63
37Colden ROULEAU54.38
38Bernard ANDRIOLI53.13
39Chris BARFIELD51.88
40Don GLASS50.63
41Bert SCHOOSE49.38
42David JOHNSON48.13
43Grant SMITH46.88
44Nathan COCKERILL45.63
45Jim O'KELLEY44.38
46Chris BRAND43.13
47Eamon DRISCOLL41.88
48Alex AMANN40.63
49Kyle WHITE39.38
50Christopher M. DAVIS38.13
51Mike WHITTY36.88
52Robert PREMUS35.63
53Tyler MOLLENKOPF34.38
54Eric BROWN33.13
56Nathan BARNES30.63
57Pete MCNAMARA29.38
58Kevin O'KELLY28.13
59Mike SULLIVAN26.88
60Shawn MCDUFFEE25.63
61Greg DUENOW24.38
62Jim BURGESS23.13
63Michael SIMS21.88
64Melinda HOLLEY20.63
65Bill LAFOSSE19.38
66Don DEL GRANDE18.13
67Carl ELLIS16.88
68Chris GLASSBURN15.63
69Paul PIGNOTTI14.38
70Mike MORRISON13.13
71Mike BARTLEIN11.88
72Alex MASLOW10.63
73Erik BERGQUIST9.38
73Aaron BERNHARDT9.38
73Ben DIPAOLA9.38
73Kyle GREENWOOD9.38
73Steve PEDLOW9.38
73Ulysses PETERSON9.38
73Brett SMITH9.38

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