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 Boardgaming Championships 2003
Date July 26-28, 2003 Place Baltimore
Number of players29 Number of rounds3 Number of boards9
Coeff 110.29 Coeff 2- Coeff 3-

RankFirstName LastNameLoc.Nat.Score
1Rick DESPER98.28
2Ric MANNS94.83
3Conrad WOODRING91.38
4Nicholas BENEDICT87.93
5Thomas PASKO84.48
6Michael CZAJKOWSKI81.03
7Rebecca NEVILLE77.59
8Scott BOWLING74.14
9Jeff LADD70.69
10Tom FLEMING67.24
11Hudson DEFOE63.79
12Ken SAMUEL60.34
13Andy BARTALONE56.90
13Jason LEVINE56.90
13Rich O'BRIEN56.90
16Brian ECTON46.55
18Rod SPADE39.66
19Graham WOODRING36.21
20Jay HEUMANN32.76
20Paul KONKA32.76
22Benjamin FOY25.86
23Derek HARMON22.41
23David HOOD22.41
23Richard IRVING22.41
23Evan PERLMAN22.41
23Tony VILA22.41
23Lori WHEELER22.41
23Kevin YOUELLS22.41

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