World Diplomacy Database

The World Diplomacy Database


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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

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.

Vème Coupe de Bruxelles 2006
Date March 18-19, 2006 Place Louvain-la-Neuve
Number of players26 Number of rounds3 Number of boards10
Coeff 19.43 Coeff 2- Coeff 3-

RankFirstName LastNameLoc.Nat.Score
1Nicolas IANIRI98.08
3Gwen MAGGI90.38
4Laurent DUMONT86.54
5Emmanuel DU PONTAVICE82.69
6Pierre BALTHAZAR78.85
7Mathieu CAILLEAUX75.00
8Philippe DUMAY71.15
9Vincent CARRY67.31
10Alexandre FONDU63.46
11Domitien GILLET59.62
12Benjamin GRENIER55.77
12André ILIEVICS55.77
14Maxime GOFFAUX48.08
15Sacha DAOUT44.23
16Patrick GARNIER40.38
17René VAN ROOIJEN36.54
18Jean-Louis DELATTRE32.69
19Hélène DEFFA28.85
20Yann CLOUET25.00
21Vincent HALERE21.15
22Bertrand LELANGUE17.31
24Gilles BALTHAZAR9.62
25Geoffroy HALLAUX5.77

The North American Diplomacy Association The European Diplomacy Association The Diplomacy Association of Australia and New Zealand