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.

Ier Dimanche LudiK de Champs 2006
Date February 12, 2006 Place Champs sur Marne
Number of players26 Number of rounds2 Number of boards6
Coeff 19.43 Coeff 2- Coeff 3-

RankFirstName LastNameLoc.Nat.Score
1Arnaud BOIREL98.08
2Louis Clément AZAIS94.23
3Philippe DUMAY90.38
4Stéphane BAILLEUL86.54
5Yann CLOUET82.69
6Frédéric CHAPART78.85
7Emmanuel DU PONTAVICE75.00
8Romain PARMANTIER71.15
9François-Xavier PERRAULT67.31
10Olivier MAMOU63.46
11François-Xavier LOISELEUX59.62
13Alexandre FONDU51.92
14Melina BRUNET48.08
15Philippe CLAVAUD44.23
16Grégory LEANDRO40.38
17Laurent JOLY36.54
18Benjamin POUILLES32.69
19Druk DZONGKHA28.85
19Pascal GUINDON28.85
19Stéphane MALLET28.85
22Stéphanie FUREUR17.31
22Brice ROY17.31
24David BERREBI9.62
24Thibaut LEJEUNE9.62
24Vladimir MIKOVIC9.62

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