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.

Thomas HAVER
International ranking (National ranking)18 (9) Score75.06

DateCountryName of the tournamentRankCoeff1Score
2017-07-09World DipCon XXVII 201719/8420.0077.98
2017-06-24Euro DipCon XXV 20177/1710.0061.76
2016-09-03Netherlands Diplomacy Championship 20163/125.4379.17
2016-08-28Euro DipCon XXIV 20165/2810.0083.93
2015-11-15XXXIème Championnat de France 20154/248.8685.42
2015-11-08Netherlands Diplomacy Championship 20157/2910.2977.59
2015-07-19Euro DipCon XXIII 20152/3812.8696.05
2015-05-03World DipCon XXV 20153/4320.0094.19
2014-05-25World DipCon XXIV 20141/8720.0099.43
2011-10-02Tempest in a teapot XIII 20116/259.1478.00
2011-08-07GenCon Indianapolis 20111/5115.0099.02
2010-10-17Tempest in a teapot XII 20103/3010.5791.67
2010-08-08GenCon Indianapolis 20101/4815.0098.96
2010-06-27Origins 20101/104.8595.00
2010-04-18DipCon 43 201017/4715.0064.89
2009-10-04Buckeye Game Fest X 20093/94.5772.22
2009-07-26HuskyCon 200912/5015.0077.00
2008-11-15Weasel Moot II 20083/3512.0092.86
2008-11-09Carnage on the mountain 20084/279.7187.04
2008-08-17GenCon Indianapolis 20082/5515.0097.27
2008-08-10World Boardgaming Championships 20081/218.0097.62
2008-08-03HuskyCon 200810/3812.8675.00
2008-06-29Origins 20087/259.1474.00
2008-05-25Dixie 22 20081/2810.0098.21
2008-05-18National Block Party 20082/166.5790.63
2008-04-13CODCon Open 20088/197.4260.53
2007-08-19GenCon Indianapolis 20071/4113.7198.78
2007-07-07Origins 20071/4514.8698.89
2006-08-13GenCon Indianapolis 20062/3612.2995.83
2006-07-01Origins 20068/218.0064.29
2005-08-21GenCon Indianapolis 200514/3812.8664.47
2005-07-02Origins 200512/3311.4365.15

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