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ASORS - How the math works... |
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The theory behind the rating system is, that a more skilled player (high rating) has a higher probability of winning, when playing against a less skilled player (lower rating). The specific probability of winning is calculated using the formula below:
We is the specific win-expectancy (probability), R1 is the players current rating, and R2 the opponents current rating. This probability is used to re-calculate each players rating after a match,
using the following formula:
Rn is the players new rating, Rp is the players previous rating, W is a variable to factor in the result of the match (1 = win, 0,5 = draw, 0 = loss), We is the specific win-expectancy, and K is a value based on the players previous rating (Rp).
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