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.

Dixie 32 2018
Date May 25-27, 2018 Place Chapel Hill
Number of players41 Number of rounds3 Number of boards15
Coeff 113.71 Coeff 2- Coeff 3-

RankFirstName LastNameLoc.Nat.Score
1David MILLER98.78
2Andy BARTALONE96.34
3Doug MOORE93.90
4Tom KOBRIN91.46
5Timothy JAXON89.02
6Hudson DEFOE86.59
6Chris MARTIN86.59
8Eric GRINNELL81.71
9Chris BARFIELD79.27
10Edwin TURNAGE76.83
10Emily TURNAGE76.83
12Jeff LADD71.95
13Brian ECTON69.51
14Peter YEARGIN67.07
15Vince AGOSTA64.63
16Greg MYERS62.20
18Clem JAYNE57.32
18Brian LEE57.32
20Alex RONKE52.44
21Danny GRINNELL50.00
22Jason MASTBAUM47.56
23Jim YERKEY45.12
24Michael BINDER42.68
25Tony BILZI40.24
26Eric ERIKSON37.80
27Nick KOEHLER35.37
28Caleb SLOAN32.93
29Jamison COLEMAN30.49
30Scott CROOK28.05
31Robert KOEHLER25.61
33Harrison SMITH20.73
34Jonathan FRANK18.29
35Mitchell MCCONEGHEY15.85
36Graham WOODRING13.41
36Kendall WRIGHT13.41

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