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.

Tempest in a teapot VI 2004
World Boardgaming Championships
Date August 13-15, 2004 Place Hunts Valley
Number of players56 Number of rounds3 Number of boards18
Coeff 115.00 Coeff 2- Coeff 3-

RankFirstName LastNameLoc.Nat.Score
1Andy BARTALONE99.11
2Tom KOBRIN97.32
3Nathan BARNES95.54
4Eric MEAD93.75
5Corey MASON91.96
6Rick DESPER90.18
7Lori WHEELER88.39
8Carl WILLNER86.61
9Thomas PASKO84.82
10Michael MC MILLIE83.04
11Roy RINK81.25
12Luke DWYER79.46
13Adam SIGAL77.68
14Ike PORTER75.89
15Kyle KALEMBER74.11
16Harald HENNING72.32
17Graham WOODRING70.54
18Jay HEUMANN68.75
19Luis UGAZ66.96
20John BARRINGER65.18
21Brian LEE63.39
22Doug MOORE61.61
23David MALETSKY59.82
25David SANDER56.25
26Jeff LADD54.46
27Catherine LANGE52.68
28Al UGAZ50.89
29Tony DEFOE49.11
31Wally HNATIW45.54
32Rex MARTIN43.75
33Mike HALL41.96
34Brian ECTON40.18
35Paul KONKA38.39
36Rod SPADE36.61
37Scott BOWLING34.82
38Derek HARMON33.04
40Joe COLLINSON29.46
41Jean-François GAGNE27.68
42Ken SAMUEL25.89
43Ian LANGE24.11
44Carl ADAMEC22.32
45Mike BUCCHIERI20.54
46Greg WILSON18.75
47Alex VYE16.96
48Steve KOEHLER15.18
49Michael CZAJKOWSKI13.39
50Rick NORTHEY11.61
51David HOOD9.82
52Lisa FOSTER8.04
53Dan MATHIAS6.25
54Hudson DEFOE4.46
55Joe WHEELER2.68
56Nicholas BENEDICT0.89

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