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XCOMUFO & Xenocide

Elo Score Calculation


vozice_09

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Its posible change ELO score calculation? Now if you look into chart you can see:

 

duke unf! - 66 victories, 35 lost - score 1698

Intri2 - 128 victories, 34 lost - score 1678

 

How is score calculated? I mean that Intri2 must be higher than duke unf! Intri have 94 victory games and duke only 31... but duke is on better place. Maybe small improvement could be fine...

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Its posible change ELO score calculation? Now if you look into chart you can see:

 

duke unf! - 66 victories, 35 lost - score 1698

Intri2 - 128 victories, 34 lost - score 1678

 

How is score calculated? I mean that Intri2 must be higher than duke unf! Intri have 94 victory games and duke only 31... but duke is on better place. Maybe small improvement could be fine...

http://en.wikipedia.org/wiki/Elo_rating_system

 

Not just a plain number of victories is taken into account. Defeating stronger opponents has better effect on your rating.

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  • 3 weeks later...
  • 2 weeks later...

 

There is coefficient K in the formulae to distinguish players by their score and to boost lower ones more. Quote form the wikipedia "Players below 2100 -> K factor of 32 used, Players between 2100 and 2400 -> K factor of 24 used, Players above 2400 -> K factor of 16 used". By an experiment I've figured out that K for player with 1511 equals to ~31. What Ks are for the rest categories, I do not know.

 

 

PS: official battle server update scores not instantly after a game.

 

Update

I have gotten from the source code that K equals 32 for players below 2400 and 16 for others.

Edited by Fomka
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