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.

World DipCon XXVIII 2018
Date October 5-7, 2018 Place Washington
Number of players94 Number of rounds5 Number of boards?
Coeff 120.00 Coeff 2- Coeff 3-

RankFirstName LastNameLoc.Nat.Score
1Andrew GOFF99.47
2Doug MOORE98.40
3Adam SIGAL97.34
4Jordan CONNORS96.28
5Dan LESTER95.21
6Brad BLITSTEIN94.15
8Michael BINDER92.02
9Adam SILVERMAN90.96
11Mike HALL88.83
12Dan POLLOCK87.77
13Peter MCNAMARA86.70
14Nicolas SAHUGUET85.64
15Grant STEEL84.57
16Edi BIRSAN83.51
17Tanya GILL82.45
18Eric GRINNELL81.38
19Steve COOLEY80.32
20Andrew KATCHER79.26
21Kevin O'KELLY78.19
22Chris BRAND77.13
23Clem JAYNE76.06
24Jorge ZHANG75.00
25Travis MCTIGHE73.94
26Joe WHEELER72.87
27Matt SHIELDS71.81
28Edwin TURNAGE70.74
29Michael MC MILLIE69.68
30Tom KOBRIN68.62
31Sven VASSEUR67.55
37John AVINA61.17
57Günther BEDSON39.89

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