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Subject: Re: Green List formula

Author: Dave Gomboc

Date: 10:37:05 01/18/00

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On January 18, 2000 at 12:56:44, Dan Homan wrote:

>Hi Will,
>
>Your adjustment does something to correct for the
>faster is better rule - and the logrithm accounts for
>the fact that faster isn't linearly better, but
>Vincent has a point in that (beyond the above considerations) your
>adjustment is basically pulled out of thin air.  A better
>approximation might be to use the general rule that
>doubling the speed gives about seventy elo points.
>Adjusting for that rule is easy...
>
>Adjusted Rating = Rating - 70 x log[2](MHz) - 2000
>
>(where log[2] is log base 2)

The "general rule" used to be that doubling speed was worth 100 points... then
70 points... some people even say 35 points now.  50 may have been as good a
guess as any.

Dave



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