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.

International ranking (National ranking)21 (1) Score74.18

DateCountryName of the tournamentRankCoeff1Score
2017-09-0Netherlands Diplomacy Championship 20171/94.5794.44
2017-07-09World DipCon XXVII 20176/8420.0093.45
2015-11-08Netherlands Diplomacy Championship 20151/2910.2998.28
2015-07-19Euro DipCon XXIII 20157/3812.8682.89
2015-05-10San Marino Con 20154/156.2976.67
2015-05-03World DipCon XXV 201524/4320.0045.35
2014-09-21BerliCon 20142/135.7188.46
2014-05-25World DipCon XXIV 20143/8720.0097.13
2013-11-24HessenCon 20133/84.2968.75
2013-08-25World DipCon XXIII 201338/7520.0050.00
2013-05-05Euro DipCon XXI 20132/1910.0092.11
2012-11-04Carnage on the mountain 20122/156.2990.00
2012-10-07Tempest in a teapot XIV 20122/166.5790.63
2012-09-16NYC Diplomacy Tournament 20122/135.7188.46
2012-08-19HuskyCon 201211/3612.2970.83
2012-08-12World DipCon XXII 201225/8020.0069.38
2012-06-24Massacre 20122/197.4392.11
2012-02-05TempleCon 20121/135.7196.15
2012-01-29WAC 9 201222/4514.8652.22
2011-11-06DipCon 44 201113/3612.2965.28
2011-10-02Tempest in a teapot XIII 20113/259.1490.00
2011-08-22HuskyCon 201129/3913.1426.92
2011-06-19Massacre 20111/135.7196.15

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