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)29 (14) Score70.87

DateCountryName of the tournamentRankCoeff1Score
2018-10-07World DipCon XXVIII 20183/9420.0097.34
2016-10-09Tempest in a Teapot XVIII 201637/4214.0013.10
2016-06-26World DipCon XXVI 201626/9320.0072.58
2016-05-29Dixie 30 20166/3612.2984.72
2015-08-09DipCon 48 20157/4715.0086.17
2015-05-24Dixie 29 20151/259.1498.00
2015-01-01NADF Masters 20155/248.8681.25
2014-08-09World Boardgaming Championships 20143/248.8689.58
2014-07-06Massacre 20149/3110.8672.58
2014-05-25World DipCon XXIV 201449/8720.0044.25
2013-10-13DipCon 46 201328/3311.4316.67
2013-07-07Massacre 20131/269.4398.08
2013-05-26Dixie 27 20131/238.5797.83
2013-02-03TempleCon 201312/135.7111.54
2013-01-20NADF Masters 20131/228.2997.73
2012-10-07Tempest in a teapot XIV 20129/166.5746.88
2012-08-19HuskyCon 201223/3612.2937.50
2012-08-12World DipCon XXII 20124/8020.0095.63
2012-05-27Dixie 26 20128/238.5767.39
2012-02-05TempleCon 20129/135.7134.62
2012-01-29WAC 9 20121/4514.8698.89
2011-11-06DipCon 44 201118/3612.2951.39
2011-10-02Tempest in a teapot XIII 201122/259.1414.00
2011-05-29Dixie 25 201113/368.0065.28
2011-01-16NADF Masters 201111/197.4344.74
2010-04-18DipCon 43 20103/4715.0094.68
2010-02-07TempleCon 20101/248.8697.92
2009-07-26HuskyCon 200928/5015.0045.00
2009-06-28World DipCon XIX 20094/5320.0093.40
2009-05-24Dixie 23 20091/228.2997.73
2009-01-25WAC 6 20091/4514.8698.89
2008-08-03HuskyCon 20082/3812.8696.05
2008-05-25Dixie 22 20089/2810.0069.64
2008-04-20BADAss Whipping 20088/228.2965.91
2007-10-14BADAss Whipping 20075/279.7183.33
2007-08-19HuskyCon 20079/3512.0075.71
2006-08-20HuskyCon 20064/2910.2987.93
2005-08-21HuskyCon 20057/279.7175.93
2005-07-31World DipCon XV 200527/8320.0068.07
2004-08-22HuskyCon 200414/3913.1465.38
2004-08-15Tempest in a teapot VI 200413/5615.0077.68
2004-05-30Dixie 18 200422/4214.0048.81
2004-02-29PrezCon 200415/3010.5751.67
2003-05-25KublaCon 200310/3211.1470.31

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