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)74 (3) Score59.46

DateCountryName of the tournamentRankCoeff1Score
2018-10-07World DipCon XXVIII 201811/9420.0088.83
2016-06-26World DipCon XXVI 201650/9320.0046.77
2015-08-09DipCon 48 201529/4715.0039.36
2014-05-25World DipCon XXIV 201437/8720.0058.05
2014-01-26DipCon 47 201443/6515.0034.62
2013-10-13DipCon 46 201316/3311.4353.03
2012-08-19HuskyCon 201218/3612.2951.39
2012-08-12World DipCon XXII 201212/8020.0085.63
2012-01-29WAC 9 201237/4514.8618.89
2011-11-06DipCon 44 20116/3612.2984.72
2011-10-02Tempest in a teapot XIII 20114/259.1486.00
2011-05-29Dixie 25 201121/368.0043.06
2010-10-17Tempest in a teapot XII 201024/3010.5721.67
2010-04-18DipCon 43 201015/4715.0069.15
2010-01-30Mini WAC 201015/187.1419.44
2009-01-25WAC 6 200922/4514.8652.22
2008-04-20BADAss Whipping 20085/228.2979.55
2007-10-07Tempest in a teapot IX 200739/4113.716.10
2007-08-12World DipCon XVII 200711/7020.0085.00
2006-10-01Canuck Con 200618/197.437.89
2006-01-28WAC 3 200628/3612.2923.61
2005-07-31World DipCon XV 200522/8320.0074.10
2005-06-26Dip in the Ocean 200523/238.572.17
2004-11-14BADAss Whipping 20046/269.4378.85
2004-10-10DragonFlight 200413/3812.8667.11
2004-08-27Dip in the Ocean 200413/248.8647.92
2004-08-15Tempest in a teapot VI 200433/5615.0041.96
2003-02-16World DipCon XIII 200333/12820.0074.61
2002-08-04World Boardgaming Championships 20025/5015.0091.00
2000-08-06World DipCon X 200047/14120.0067.02

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