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)31 (15) Score70.18

DateCountryName of the tournamentRankCoeff1Score
2019-09-01World DipCon XXIX 201923/3820.0040.79
2018-10-07World DipCon XXVIII 201818/9420.0081.38
2018-09-02Weasel Moot XII 20181/2810.0098.21
2018-06-24Boston Massacre 20182/2910.2994.83
2018-05-27Dixie 32 20188/4113.7181.71
2018-04-15CODCon Open 20183/218.0088.10
2018-02-25TotalCon 20182/269.4394.23
2018-01-28Cascadia Open 20184/197.4381.58
2017-06-25Weasel Moot XI 20172/3612.2995.83
2016-06-26World DipCon XXVI 201632/9320.0066.13
2016-05-29Dixie 30 201630/3612.2918.06
2015-11-08Carnage on the mountain 201512/3311.4365.15
2015-10-11Tempest in a Teapot XVII 201511/3913.1473.08
2015-08-09DipCon 48 201512/4715.0075.53
2015-06-14Weasel Moot IX 20156/2910.2981.03
2015-04-12CODCon Open 20153/269.4390.38
2014-10-12Tempest in a Teapot XVI 201417/2810.0041.07
2014-05-25World DipCon XXIV 201429/8720.0067.24
2013-06-23Weasel Moot VII 201313/3512.0064.29
2013-05-26Dixie 27 201321/238.5710.87
2008-08-17GenCon Indianapolis 200825/5515.0055.45
2008-08-10World Boardgaming Championships 20082/218.0092.86
2008-08-03HuskyCon 200816/3812.8659.21
2008-06-29Origins 20082/259.1494.00
2008-05-25Dixie 22 20083/2810.0091.07
2008-05-18National Block Party 20088/166.5753.13
2007-07-07Origins 200715/4514.8667.78
2003-05-23Dixie 17 200316/5215.0070.19
2003-02-16World DipCon XIII 200311/12820.0091.80
2000-08-06World DipCon X 200042/14120.0070.57
1998-07-06World DipCon VIII 199833/7720.0057.79

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