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.

Carnage on the Mountain 2016
Date November 4-6, 2016 Place Killington Grand Resort
Number of players38 Number of rounds3 Number of boards15
Coeff 112.86 Coeff 2- Coeff 3-

RankFirstName LastNameLoc.Nat.Score
1Chris MARTIN98.68
2Jason O'DONNELL96.05
3Andy BARTALONE93.42
4Peter YEARGIN90.79
5Chris CAMPBELL88.16
6Graham WOODRING85.53
8Roland COOKE80.26
9Tyler MOLLENKOPF77.63
10Nicholas DELATEUR75.00
11Andrew KATCHER72.37
12Siobhan NOLEN69.74
12Bryan PRAVEL69.74
14Donald WOODRING64.47
15Jim O'KELLEY61.84
16Dan POLLOCK59.21
17Brad BLITSTEIN56.58
18Brian ECTON53.95
19Mitchell MCCONEGHEY51.32
20Alan LEVIN48.68
20Emily POLLOCK48.68
22Alex MASLOW43.42
23Robert PREMUS40.79
24Chris BARFIELD38.16
25Joel CULBREATH35.53
26Angelo DELLOMARGIO32.89
27Josh CULBREATH30.26
28Sam CAPASSO27.63
29Chris JOHNSON25.00
30Matt LANGER22.37
31Mark GATESMAN19.74
32Mary WITTIG17.11
33Carl ELLIS14.47
34Dariusz MURAKOWSKI11.84
35David CHENG9.21
36Evan ELLIS6.58
37Tony DORMAN3.95
37Andrew HARMON3.95

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