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)6 (2) Score82.23

DateCountryName of the tournamentRankCoeff1Score
2019-09-08DipCon 20198/4715.0084.04
2019-05-26Dixie 33 20194/3612.2990.28
2018-05-27Dixie 32 201814/4113.7167.07
2017-07-09World DipCon XXVII 201711/8420.0087.50
2017-05-28Dixie 31 20176/2810.0080.36
2017-04-02BADAss Whipping 20177/3612.2981.94
2016-11-06Carnage on the Mountain 20164/3812.8690.79
2016-06-26World DipCon XXVI 20165/9320.0095.16
2016-05-29Dixie 30 20164/3612.2990.28
2015-11-08Carnage on the mountain 201514/3311.4359.09
2015-10-11Tempest in a Teapot XVII 201515/3913.1462.82
2015-08-09DipCon 48 20155/4715.0090.43
2015-01-01NADF Masters 20153/248.8689.58
2014-10-12Tempest in a Teapot XVI 20149/2810.0069.64
2014-05-25World DipCon XXIV 201445/8720.0048.85
2014-01-26DipCon 47 201411/6515.0083.85
2013-10-13DipCon 46 20134/3311.4389.39
2013-07-07Massacre 20133/269.4390.38
2013-05-26Dixie 27 20134/238.5784.78
2013-01-20NADF Masters 20134/228.2984.09
2012-10-07Tempest in a teapot XIV 20128/166.5753.13
2012-08-19HuskyCon 20121/3612.2998.61
2012-08-12World DipCon XXII 20128/8020.0090.63
2012-05-27Dixie 26 20121/238.5797.83
2012-01-29WAC 9 20129/4514.8681.11
2011-11-06DipCon 44 20112/3612.2995.83
2011-09-11Weasel Moot V 20113/3913.1493.59
2011-08-22HuskyCon 201116/3913.1460.26
2011-05-29Dixie 25 20112/368.0095.83
2011-04-17CODCon Open 20112/248.8693.75
2011-01-16NADF Masters 20116/197.4371.05
2010-11-07Carnage on the mountain 20104/238.5784.78
2010-10-17Tempest in a teapot XII 20109/3010.5771.67
2010-09-26Weasel Moot IV 20101/3712.5798.65
2010-08-29Euro DipCon XVIII 201025/6215.0060.48
2010-08-22World DipCon XX 201015/7620.0080.92
2010-07-11HuskyCon 20101/4815.0098.96
2010-05-30Dixie 24 20102/3010.5795.00
2010-04-18DipCon 43 201025/4715.0047.87
2010-04-11CODCon Open 20103/248.8689.58
2009-09-19Weasel Moot III 20093/3812.8693.42
2009-06-28World DipCon XIX 200916/5320.0070.75
2009-04-19CODCon Open 20093/228.2988.64

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