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)41 (6) Score66.90

DateCountryName of the tournamentRankCoeff1Score
2017-07-09World DipCon XXVII 201713/8420.0085.12
2015-08-09DipCon 48 201526/4715.0045.74
2015-07-19Euro DipCon XXIII 20154/3812.8690.79
2015-05-03World DipCon XXV 201510/4320.0077.91
2014-09-07Euro DipCon XXII 20147/3512.0081.43
2011-09-11Weasel Moot V 201114/3913.1465.38
2011-05-29Dixie 25 20117/368.0081.94
2011-01-16NADF Masters 20117/197.4365.79
2010-11-07Carnage on the mountain 20101/238.5797.83
2010-09-26Weasel Moot IV 201015/3712.5760.81
2010-08-29Euro DipCon XVIII 20104/6215.0094.35
2010-08-22World DipCon XX 201053/7620.0030.92
2010-07-11HuskyCon 201025/4815.0048.96
2010-04-18DipCon 43 201029/4715.0039.36
2009-09-19Weasel Moot III 200914/3812.8664.47
2009-07-26HuskyCon 200922/5015.0057.00
2009-06-28World DipCon XIX 20096/5320.0089.62
2009-05-24Dixie 23 200910/228.2956.82
2009-01-25WAC 6 20094/4514.8692.22
2008-11-09Carnage on the mountain 20082/279.7194.44
2008-08-03HuskyCon 200826/3812.8632.89
2007-08-19HuskyCon 200727/3512.0024.29
2006-11-12Carnage on the mountain 20062/146.0089.29
2005-08-21HuskyCon 200519/279.7131.48
2004-12-01MilanCon I 20041/176.2997.06
2004-11-07Joutes du Téméraire 20046/238.5776.09
2004-08-22HuskyCon 20042/3913.1496.15
2004-06-20Massacre 200414/3110.8656.45
2004-05-30Dixie 18 200411/4214.0075.00
2003-08-08HuskyCon 20039/3010.5771.67
2003-07-28World Boardgaming Championships 20033/2910.2991.38
2003-05-23Dixie 17 20034/5215.0093.27
2003-02-16World DipCon XIII 200398/12820.0023.83
2002-10-13Tempest in a teapot IV 20021/4514.8698.89
2002-08-04World Boardgaming Championships 200238/5015.0025.00
2002-02-24PrezCon 200219/279.7131.48
2000-08-06World DipCon X 200086/14120.0039.36

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