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)7 (3) Score81.97

DateCountryName of the tournamentRankCoeff1Score
2018-10-07World DipCon XXVIII 201830/9420.0068.62
2018-05-27Dixie 32 20184/4113.7191.46
2017-05-28Dixie 31 20172/2810.0094.64
2016-06-26World DipCon XXVI 201627/9320.0071.51
2016-05-29Dixie 30 20161/3612.2998.61
2015-05-24Dixie 29 20153/259.1490.00
2014-05-25World DipCon XXIV 20144/8720.0095.98
2013-05-26Dixie 27 20131/238.5797.83
2012-05-27Dixie 26 20124/238.5784.78
2011-05-29Dixie 25 201114/368.0062.50
2010-05-30Dixie 24 20103/3010.5791.67
2010-04-18DipCon 43 20108/4715.0084.04
2008-02-24PrezCon 20082/218.0092.86
2007-08-12World DipCon XVII 20077/7020.0090.71
2007-01-20WAC 4 200714/3411.7160.29
2006-08-20HuskyCon 20063/2910.2991.38
2005-07-31World DipCon XV 20052/8320.0098.19
2005-05-27Dixie 19 200518/3211.1445.31
2005-02-23PrezCon 20054/176.8679.41
2004-08-15Tempest in a teapot VI 20042/5615.0097.32
2004-02-29PrezCon 20043/3010.5791.67
2003-05-23Dixie 17 20031/5215.0099.04
2003-02-16World DipCon XIII 200350/12820.0061.33
2002-10-20Carnage on the mountain 20021/166.5796.88
2000-08-06World DipCon X 200014/14120.0090.43
1998-07-06World DipCon VIII 19987/7720.0091.56
1997-03-30World DipCon VII 199714/11420.0088.16
1996-06-01World DipCon VI 19964/8820.0096.02

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