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.

DipCon 48 2015
Date August 7-9, 2015 Place Philadelphia
Number of players47 Number of rounds4 Number of boards24
Coeff 115.00 Coeff 2- Coeff 3-

RankFirstName LastNameLoc.Nat.Score
1Chris MARTIN98.94
2David HOOD96.81
3David MALETSKY94.68
4Robert CANTELMO92.55
5Peter YEARGIN90.43
6Nicolas SAHUGUET88.30
7Adam SIGAL86.17
8Seth VICTOR84.04
9Graham WOODRING81.91
10Andy BARTALONE79.79
11Joel CULBREATH77.66
12Eric GRINNELL75.53
13Robert ROUSSE73.40
14Christian MACDONALD71.28
15Andy SHINER69.15
16Robert PREMUS67.02
17Win KELLER64.89
18Emily POLLOCK62.77
19Michael BINDER60.64
19David JOHNSON60.64
19Randy LAWRENCE-HURT60.64
22Sam CAPASSO54.26
23Nicholas DELATEUR52.13
24Jay HEUMANN50.00
25Brian SHELDEN47.87
26Matt LANGER45.74
26Conrad WOODRING45.74
28Donald WOODRING41.49
29Mike HALL39.36
29Laurent JOLY39.36
31Brent WADDINGTON35.11
32Angelo DELLOMARGIO32.98
33Brian ECTON30.85
34Joe SIESTO28.72
35Jason MASTBAUM26.60
36Dan POLLOCK24.47
37Dariusz MURAKOWSKI22.34
38Jay ALOIA20.21
39Jorge ZHANG18.09
40Rick DESPER15.96
41Andrew HAVERY13.83
42Mitchell MCCONEGHEY11.70
43Siobhan NOLEN9.57
44Manny CRUZ7.45
45Rebecca MILLER5.32
46Tuong LAM3.19
47Dan BURGESS1.06

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