17:00 CEST NSL Open tournament #3 Group Stage http://ensl.org/contests/412
I'm sure many wonder how the pointing system works. Basically the idea is to make sure that teams' skill-difference affects the score. That means, you get more points from a draw against a better team than from a draw against a team of your own skill level.
You can use easily find how much any team would get with any score against its opponents in a ladder, by clicking "Scores" under any ladder contest.
Normal a player doesn't have to worry about the math behind it but here's the manual for those of you who are curious.
ELO Scoring is a scoring system that is used in soccer, chess, badminton etc. It is also used in the Clanbase ladders.
The formula to calculate the awarded (or lost) points is following:
P = Points Change
K = Base modulus (affects general scoring level, usually 30)
G = Modulus for different scores (usually even=1.0, 3-1=1.25, 4-0=1.5)
R = The result of the match (0 = loss, 0.5 = draw, 1 = win)
D = Points difference before the match
W = "Weight"
e = The expected result = 1/(1^(D/W)+1)
The formula works by subtracting the expected score (e) from the actual result. The expected score will close to 1 (win), more there is chance to win the round. This is basic statistical mathematics.
Let's suppose Tem A wins Team B by 3-1, the base modulus is 30, and 3-1 score will have modulus 1.25, and the Team B had 40 more points than team A. The result will be:
In this case, the likelihood of a win for Team A is 17%. This means that result will be:
Thus Team A gets 31 points while Team B loses 31 points.