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)216 (120) Score48.28

DateCountryName of the tournamentRankCoeff1Score
2016-10-09Tempest in a Teapot XVIII 201632/4214.0010.71
2016-10-09Tempest in a Teapot XVIII 201638/4214.0010.71
2016-06-26World DipCon XXVI 201635/9320.0062.90
2015-10-11Tempest in a Teapot XVII 20153/3913.1493.59
2015-08-09DipCon 48 201540/4715.0015.96
2014-10-12Tempest in a Teapot XVI 20148/2810.0073.21
2014-07-06Massacre 201415/3110.8653.23
2014-05-25World DipCon XXIV 201419/8720.0078.74
2013-10-13DipCon 46 201313/3311.4362.12
2013-07-07Massacre 201314/269.4348.08
2012-10-07Tempest in a teapot XIV 201212/166.5728.13
2012-08-12World DipCon XXII 201230/8020.0063.13
2011-10-02Tempest in a teapot XIII 201116/259.1438.00
2010-10-17Tempest in a teapot XII 201026/3010.5715.00
2010-07-11HuskyCon 201017/4815.0065.63
2009-09-19Weasel Moot III 200920/3812.8648.68
2009-07-26HuskyCon 200941/5015.0019.00
2008-07-27Maine Diplomacy Circuit 200811/228.2952.27
2008-04-13SpringCon 200812/187.1436.11
2007-08-19HuskyCon 200723/3512.0035.71
2007-08-12World DipCon XVII 200721/7020.0070.71
2007-07-23ManorCon 25 20074/207.7182.50
2006-08-06World DipCon XVI 200631/12020.0074.58
2006-07-30Felix Austria 200624/3512.0032.86
2005-07-31World DipCon XV 200516/8320.0081.33
2005-07-17ManorCon 23 200510/4013.4376.25
2005-05-27Dixie 19 200516/3211.1451.56
2005-02-23PrezCon 200515/176.8614.71
2005-01-21WAC 2 200526/3712.5731.08
2004-11-07Carnage on the mountain 20045/197.4376.32
2004-08-15Tempest in a teapot VI 20046/5615.0090.18
2004-07-18World DipCon XIV 200453/11320.0053.54
2004-06-20Massacre 200412/3110.8662.90
2004-05-30Dixie 18 20043/4214.0094.05
2004-02-29PrezCon 20048/3010.5775.00
2003-07-28World Boardgaming Championships 20031/2910.2998.28
2003-06-22Massacre 20035/3311.4386.36
2003-05-23Dixie 17 200323/5215.0056.73
2003-02-16World DipCon XIII 200332/12820.0075.39
2003-01-19Dress Rehearsal Con - East 20037/218.0069.05
2002-10-13Tempest in a teapot IV 20027/4514.8685.56
2002-08-04World Boardgaming Championships 200220/5015.0061.00
2002-03-03Diplomatic Incident 20023/197.4386.84
2002-02-24PrezCon 200216/279.7142.59
2000-08-06World DipCon X 200020/14120.0086.17
1999-04-01World DipCon IX 199939/10920.0064.68
1998-07-06World DipCon VIII 199811/7720.0086.36

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