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.

Melissa CALL (nee NICHOLSON)
International ranking (National ranking)135 (7) Score53.63

DateCountryName of the tournamentRankCoeff1Score
2016-12-04PoppyCon 20167/106.8635.00
2016-07-17Melbourne Diplomacy Championships 20169/94.575.56
2015-11-22PoppyCon 20154/176.8679.41
2015-07-05Victorian Championships 20158/146.0046.43
2014-11-23PoppyCon 20141/238.5797.83
2011-10-03World DipCon XXI 201118/3420.0048.53
2011-01-23Australian Championships 20113/187.1486.11
2010-07-11HuskyCon 20106/4815.0088.54
2010-06-27Massacre 20109/228.2961.36
2010-02-07TempleCon 201011/248.8656.25
2009-11-08Carnage on the mountain 20092/197.4392.11
2009-07-26HuskyCon 200915/5015.0071.00
2009-02-08TempleCon 20097/218.0069.05
2008-11-09Carnage on the mountain 20085/279.7183.33
2008-08-03HuskyCon 200811/3812.8672.37
2008-06-22Massacre 200815/2910.2950.00
2008-02-02TempleCon 20081/74.0092.86
2007-11-04Carnage on the mountain 20075/187.1475.00
2007-10-07Tempest in a teapot IX 200713/4113.7169.51
2007-08-19HuskyCon 20078/3512.0078.57
2006-08-20HuskyCon 20067/2910.2977.59
2005-01-21WAC 2 200517/3712.5755.41
2004-11-07Carnage on the mountain 20047/197.4365.79
2004-08-22HuskyCon 20044/3913.1491.03
2004-06-20Massacre 200419/3110.8640.32
2003-10-26Carnage on the mountain 20031/115.1495.45
2003-08-08HuskyCon 20038/3010.5775.00
2003-02-16World DipCon XIII 200326/12820.0080.08
2002-12-08DonnerCon 20023/187.1486.11
2002-10-20Carnage on the mountain 20022/166.5790.63
2002-08-04World Boardgaming Championships 20022/5015.0097.00
2002-03-03Diplomatic Incident 20023/197.4386.84
2002-01-27Victorian Championships 200212/166.5728.13

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