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)202 (112) Score48.70

DateCountryName of the tournamentRankCoeff1Score
2019-05-26Dixie 33 201928/3612.2923.61
2018-05-27Dixie 32 201832/4113.7123.17
2017-05-28Dixie 31 20175/2810.0083.93
2016-10-09Tempest in a Teapot XVIII 201628/4214.0034.52
2016-06-26World DipCon XXVI 201629/9320.0069.35
2016-05-29Dixie 30 20169/3612.2976.39
2015-10-11Tempest in a Teapot XVII 201534/3913.1414.10
2015-05-24Dixie 29 20154/259.1486.00
2014-10-12Tempest in a Teapot XVI 201413/2810.0055.36
2014-05-25World DipCon XXIV 201468/8720.0022.41
2013-10-13DipCon 46 20135/3311.4386.36
2013-05-26Dixie 27 20136/238.5776.09
2012-05-27Dixie 26 20123/238.5789.13
2011-05-29Dixie 25 201119/368.0048.61
2010-05-30Dixie 24 201012/3010.5761.67
2010-02-28PrezCon 20103/84.2968.75
2009-05-24Dixie 23 200914/228.2938.64
2008-08-03HuskyCon 200833/3812.8614.47
2008-05-25Dixie 22 200819/2810.0033.93
2007-10-07Tempest in a teapot IX 200723/4113.7145.12
2007-05-27Dixie 21 200723/3010.5725.00
2007-01-20WAC 4 200718/3411.7148.53
2006-10-08Tempest in a teapot VIII 20064/248.8685.42
2006-05-28Dixie 20 200613/3010.5758.33
2006-01-28WAC 3 200621/3612.2943.06
2005-05-27Dixie 19 20055/3211.1485.94
2005-02-23PrezCon 200515/176.8614.71
2004-08-15Tempest in a teapot VI 200424/5615.0058.04
2004-05-30Dixie 18 20048/4214.0082.14
2004-02-29PrezCon 200414/3010.5755.00
2003-05-23Dixie 17 200328/5215.0047.12
2003-02-16World DipCon XIII 200383/12820.0035.55
2003-01-19Dress Rehearsal Con - East 200316/218.0026.19
2002-10-13Tempest in a teapot IV 200235/4514.8623.33
2002-02-24PrezCon 200218/279.7135.19
2000-08-06World DipCon X 200015/14120.0089.72
1998-07-06World DipCon VIII 199823/7720.0070.78

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