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.

World DipCon XV 2005
Tempest in a teapot VII
Date July 29-31, 2005 Place Washington
Number of players83 Number of rounds5 Number of boards37
Coeff 120.00 Coeff 2- Coeff 3-

RankFirstName LastNameLoc.Nat.Score
1Frank JOHANSEN99.40
2Tom KOBRIN98.19
3Edi BIRSAN96.99
4Mark ZOFFEL95.78
5Jerry FEST94.58
6Dan LESTER93.37
7Adam SILVERMAN92.17
8Andrew NEUMANN90.96
9Doug MOORE89.76
10Simen Fure JORGENSEN88.55
10Michael MC MILLIE88.55
10Eric MEAD88.55
13Riaz VIRANI84.94
14Jim O'KELLEY83.73
15Jake MANNIX82.53
16Rick DESPER81.33
17Edward PREM80.12
18Brian SHELDEN78.92
19Matt SHIELDS77.71
20Doug SCOTT76.51
21Donald WOODRING75.30
22Mike HALL74.10
23Joe WHEELER72.89
24Nathan BARNES71.69
25Brian ECTON70.48
26Lionel LEVINE69.28
27Adam SIGAL68.07
28Steve COOLEY66.87
29David MALETSKY65.66
30Graham WOODRING64.46
31Ben TEIXEIRA63.25
32Robert HOLT62.05
33David HOOD60.84
34Chris CAMPBELL59.64
34Gregg HARRY59.64
36Stephen MAURIS57.23
37Kyle KALEMBER56.02
38Chris MARTIN54.82
39Bruce RAY53.61
40Lori WHEELER52.41
41Mike BARNO51.20
42Eric HUNTER50.00
43David NORMAN48.80
43Jon SAUL48.80
43Carl WILLNER48.80
46Joseph HENRY45.18
46Jeff LADD45.18
46Al UGAZ45.18
50Luke DWYER40.36
51James YARGLEY39.16
52Adam BUSHASHIA37.95
53Carl ELLIS36.75
53Ike PORTER36.75
55Jesse JOHNSON34.34
56Andy BARTALONE33.13
56Brian LEE33.13
58Christian PEDONE30.72
59Lisa FOSTER29.52
60Lane CROSS28.31
61Peter ROSS27.11
62Michael PIACSEK25.90
63Harry FRAZER24.70
64Todd GRINDAL23.49
65Eric SILVERMAN22.29
66Doug BROWN21.08
66Kimberly COLMAN21.08
66Dominic CRAPUCHETTES21.08
66Corey MASON21.08
66Josh OBOLER21.08
71Rod SPADE15.06
71Roelof VAN DER LAAN15.06
73Tony VILA12.65
74Tim MILLER11.45
75Claudio CAMPUZANO10.24
75Blake COLMAN10.24
75Sean COLMAN10.24
75Don DEL GRANDE10.24
75Wes DONEHOWER10.24
75Buz EDDY10.24
75Derek HARMON10.24
75Martin SMITH10.24

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