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)35 (19) Score68.89

DateCountryName of the tournamentRankCoeff1Score
2018-10-07World DipCon XXVIII 201826/9420.0072.87
2017-05-28Dixie 31 20174/2810.0087.50
2016-10-09Tempest in a Teapot XVIII 20164/4214.0091.67
2015-10-11Tempest in a Teapot XVII 20154/3913.1491.03
2015-05-24Dixie 29 201518/259.1430.00
2015-01-01NADF Masters 201511/248.8656.25
2014-10-12Tempest in a Teapot XVI 20143/2810.0091.07
2014-05-25World DipCon XXIV 201424/8720.0072.99
2013-10-13DipCon 46 20137/3311.4380.30
2011-11-06DipCon 44 201110/3612.2973.61
2011-10-02Tempest in a teapot XIII 201120/259.1422.00
2011-08-22HuskyCon 201132/3913.1419.23
2010-10-17Tempest in a teapot XII 201023/3010.5725.00
2010-07-11HuskyCon 201017/4815.0065.63
2009-07-26HuskyCon 200934/5015.0033.00
2008-08-03HuskyCon 20085/3812.8688.16
2008-04-13SpringCon 20082/187.1491.67
2007-10-07Tempest in a teapot IX 200731/4113.7125.61
2006-10-08Tempest in a teapot VIII 200616/248.8635.42
2006-05-28Dixie 20 200622/3010.5728.33
2005-07-31World DipCon XV 200523/8320.0072.89
2005-05-27Dixie 19 200513/3211.1460.94
2005-02-23PrezCon 20055/176.8673.53
2004-08-15Tempest in a teapot VI 200455/5615.002.68
2004-02-29PrezCon 20046/3010.5781.67
2003-05-23Dixie 17 200311/5215.0079.81
2003-02-16World DipCon XIII 200321/12820.0083.98
2003-01-19Dress Rehearsal Con - East 20036/218.0073.81
2002-10-13Tempest in a teapot IV 200235/4514.8623.33
2002-08-04World Boardgaming Championships 200212/5015.0077.00
2002-02-24PrezCon 20022/279.7194.44

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