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)536 (39) Score42.77

DateCountryName of the tournamentRankCoeff1Score
2016-05-29Dixie 30 201615/3612.2959.72
2015-11-15MidCon 20153/94.5772.22
2015-07-19Euro DipCon XXIII 201535/3812.869.21
2014-11-09MidCon 20148/84.296.25
2014-05-25World DipCon XXIV 201455/8720.0037.36
2013-08-25World DipCon XXIII 201358/7520.0023.33
2012-11-11MidCon 20124/84.2956.25
2012-05-13Euro DipCon XX 20126/3612.2984.72
2012-04-15Kent Kon I 20129/125.4329.17
2011-11-13Euro DipCon XIX 201129/3311.4313.64
2011-07-17ManorCon 29 201115/156.293.33
2010-11-21MidCon 20105/115.1459.09
2010-07-18ManorCon 28 20101/228.2997.73
2010-05-09Brighton DipCon 1 20106/125.4354.17
2008-08-17World DipCon XVIII 200826/6320.0059.52
2008-07-27ManorCon 26 200820/238.5715.22
2007-08-19HuskyCon 20076/3512.0084.29
2007-08-12World DipCon XVII 200722/7020.0069.29
2007-07-23ManorCon 25 200713/207.7137.50
2006-12-10MilanCon III 200616/3010.5748.33
2006-10-08DragonFlight 20061/2910.2998.28
2006-10-01Canuck Con 20062/197.4392.11
2006-08-06World DipCon XVI 200624/12020.0080.42
2006-07-30Felix Austria 200616/3512.0055.71
2005-11-13MidCon 20058/104.8625.00
2005-07-31World DipCon XV 200543/8320.0048.80
2005-07-17ManorCon 23 200521/4013.4348.75
2005-01-21Oxcon 200510/218.0054.76
2004-11-12MidCon 20047/146.0053.57
2004-08-23Borucon V 20042/259.1494.00
2004-02-22Waikato Open 200410/156.2936.67
2004-02-01Oxcon 200416/2810.0044.64
2003-11-01MidCon 20036/146.0060.71
2003-07-19ManorCon 21 200337/5215.0029.81
2003-02-16World DipCon XIII 200389/12820.0030.86
2003-02-08Stratagem 20035/217.7178.57
2002-11-01MidCon 200223/238.572.17
2002-10-13Tempest in a teapot IV 200212/4514.8674.44
2002-07-01ManorCon 20 200245/6715.0033.58
2002-04-01World DipCon XII 200251/5720.0011.40
2002-02-22MasterCon 09 200211/166.5734.38
2002-02-17Oxcon 20029/2810.0069.64
2001-07-29World DipCon XI 200166/11820.0044.49
2000-08-06World DipCon X 200048/14120.0066.31
1999-04-01World DipCon IX 199954/10920.0050.92
1998-07-06World DipCon VIII 199815/7720.0081.17
1997-03-30World DipCon VII 199749/11420.0057.46

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