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)61 (36) Score63.12

DateCountryName of the tournamentRankCoeff1Score
2018-11-03Carnage on the Mountain 20183/3311.4392.42
2016-11-06Carnage on the Mountain 201614/3812.8664.47
2015-11-08Carnage on the mountain 201510/3311.4371.21
2015-10-11Tempest in a Teapot XVII 20157/3913.1483.33
2015-08-09DipCon 48 201528/4715.0041.49
2014-10-12Tempest in a Teapot XVI 201416/2810.0044.64
2014-07-06Massacre 20145/3110.8685.48
2012-08-19HuskyCon 201218/3612.2951.39
2011-09-11Weasel Moot V 201129/3913.1426.92
2011-08-22HuskyCon 20113/3913.1493.59
2010-11-07Carnage on the mountain 201010/238.5758.70
2010-08-29Euro DipCon XVIII 201050/6215.0020.16
2010-07-11HuskyCon 201017/4815.0065.63
2009-07-26HuskyCon 20099/5015.0083.00
2008-11-09Carnage on the mountain 200812/279.7157.41
2008-08-03HuskyCon 200828/3812.8627.63
2008-06-22Massacre 200814/2910.2953.45
2007-11-04Carnage on the mountain 20076/187.1469.44
2007-10-07Tempest in a teapot IX 200727/4113.7135.37
2007-08-19HuskyCon 200726/3512.0027.14
2006-08-20HuskyCon 200614/2910.2953.45
2005-08-21HuskyCon 20059/279.7168.52
2005-07-31World DipCon XV 200521/8320.0075.30
2004-08-22HuskyCon 200410/3913.1475.64
2004-07-18World DipCon XIV 200462/11320.0045.58
2003-08-08HuskyCon 200316/3010.5748.33
2003-06-22Massacre 200326/3311.4322.73
2003-05-23Dixie 17 200325/5215.0052.88
2003-02-16World DipCon XIII 200318/12820.0086.33
2002-12-08DonnerCon 20026/187.1469.44
2002-10-13Tempest in a teapot IV 200221/4514.8654.44

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