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)158 (85) Score51.97

DateCountryName of the tournamentRankCoeff1Score
2019-05-26Dixie 33 20198/3612.2979.17
2018-11-03Carnage on the Mountain 201825/3311.4325.76
2018-05-27Dixie 32 201813/4113.7169.51
2017-05-28Dixie 31 201717/2810.0041.07
2016-11-06Carnage on the Mountain 201618/3812.8653.95
2016-10-09Tempest in a Teapot XVIII 201639/4214.008.33
2016-05-29Dixie 30 201629/3612.2920.83
2015-10-11Tempest in a Teapot XVII 201522/3913.1444.87
2015-08-09DipCon 48 201533/4715.0030.85
2015-05-24Dixie 29 201511/259.1458.00
2014-07-06Massacre 20147/3110.8679.03
2014-05-25World DipCon XXIV 20146/8720.0093.68
2013-07-07Massacre 20139/269.4367.31
2013-05-26Dixie 27 201315/238.5736.96
2012-08-19HuskyCon 201225/3612.2931.94
2012-05-27Dixie 26 201212/238.5750.00
2011-08-22HuskyCon 20113/3913.1493.59
2011-05-29Dixie 25 20117/368.0081.94
2010-10-17Tempest in a teapot XII 201016/3010.5748.33
2010-07-11HuskyCon 20103/4815.0094.79
2010-05-30Dixie 24 20108/3010.5775.00
2009-07-26HuskyCon 20099/5015.0083.00
2009-06-28World DipCon XIX 200927/5320.0050.00
2009-05-24Dixie 23 20093/228.2988.64
2008-08-03HuskyCon 20081/3812.8698.68
2008-05-25Dixie 22 200813/2810.0055.36
2008-04-13SpringCon 20084/187.1480.56
2008-02-24PrezCon 200811/218.0050.00
2007-05-27Dixie 21 200710/3010.5768.33
2006-10-08Tempest in a teapot VIII 200613/248.8647.92
2006-05-28Dixie 20 200616/3010.5748.33
2005-08-21HuskyCon 200516/279.7142.59
2005-07-31World DipCon XV 200525/8320.0070.48
2005-05-27Dixie 19 20051/3211.1498.44
2004-08-15Tempest in a teapot VI 200434/5615.0040.18
2004-05-30Dixie 18 20044/4214.0091.67
2003-07-28World Boardgaming Championships 200316/2910.2946.55
2003-05-23Dixie 17 20039/5215.0083.65
2003-01-19Dress Rehearsal Con - East 20038/218.0064.29
2002-12-08DonnerCon 20026/187.1469.44
2002-10-13Tempest in a teapot IV 200218/4514.8661.11
2002-08-04World Boardgaming Championships 20028/5015.0085.00
2002-02-24PrezCon 200222/279.7120.37
2000-08-06World DipCon X 200064/14120.0054.96
1998-07-06World DipCon VIII 19986/7720.0092.86

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