Author: Charles Roberson
Date: 09:20:17 12/30/02
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At one time (possibly still) freechess.org and others were using the original glicko system. This system is very deflationary. Also, the USCF system was zero sum thus deflationary (as new people improved the others give up points). Glickman has stated that his first system is deflationary as it does not account for "practice makes perfect" instead it thought "practice makes consistant". The USCF system has been modified by Glickman to make it non-deflationary. Also, Glickman has a new system that compensates for improvement. So, your rating should go down over time on servers that use the original glicko system (assuming your skill level remains flat) and should go up on the USCF system until your skill level is more accurately reflected. Charles
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