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BGonline.org Forums
Questionniare
Posted By: Rick Janowski In Response To: Questionniare (Ken Larsen)
Date: Saturday, 20 February 2016, at 5:02 p.m.
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.
The number of points at stake (arbitrarily using the square root of match length) has a significant effect on decay. If a different factor was used this would significantly effect the delay effect. The larger the number of points at stake the greater the decay.
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