This page explains how Rick Chartrand (USATT# 23394)'s rating went from 1615 to 1570 at the 2014 Fall Open held on - 22 Nov 2014. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.