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Questionniare

Posted By: Barry Silliman
Date: Saturday, 20 February 2016, at 9:59 p.m.

In Response To: Questionniare (Rick Janowski)

Elo does decay with the passage of time in effect because newer match results have a significantly greater affect than old ones. This can be seen on the online Elo systems where players ratings can and often do vary by 200 points within a year.

If I achieve an Elo of 1900 and stop playing, five years later my Elo is 1900.

If I have the #1 rating in Larsen/Silliman and stop playing, five years later my L/S rating is zero.

I don't understand your definition of decay. If my Elo goes from 1700 to 1900 in one year, thus varying 200 points, where is the decay?

Suppose I play the same player 500 times over two years. We both start with the same Elo. We alternate wins and losses over 500 matches of the same length. How does match #500- the most recent- have a significantly greater impact on our final ELO than match #1?

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