World Diplomacy Database

The World Diplomacy Database


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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.

Weasel Moot IV 2010
Date September 24-26, 2010 Place Burr Ridge
Number of players37 Number of rounds3 Number of boards12
Coeff 112.57 Coeff 2- Coeff 3-

RankFirstName LastNameLoc.Nat.Score
1Peter YEARGIN98.65
2Dirk KNEMEYER95.95
3Adam SILVERMAN93.24
4David MALETSKY90.54
5Mike FRENCH87.84
6Chris GLASSBURN85.14
7Roland COOKE82.43
8Jonathan HILL79.73
9Robert ROUSSE77.03
10Alex AMANN74.32
11Christian KLINE71.62
11Christian PEDONE71.62
13Christian MACDONALD66.22
14Kevin O'KELLY63.51
15Conrad WOODRING60.81
16Eric BROWN58.11
17Amanda BAUMGARTNER55.41
18Nick ROHN52.70
19Matt SUNDSTROM50.00
20Andy BARTALONE47.30
21Samuel BASSETT44.59
22Grant SMITH41.89
23Josh KANTO39.19
24Peter LOKKEN36.49
25Nathan COCKERILL33.78
27Aash ANAND28.38
27John GRAMILA28.38
29Don GLASS22.97
30Christina MANDARINES20.27
31Christopher M. DAVIS17.57
31Tony PROKES17.57
31Todd WOODMAN17.57
34Dan BURGESS9.46
34Tim YANOK9.46
36Mike MORRISON4.05
37Pete MCNAMARA1.35

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