This page explains how Rick Chartrand (USATT# 23394)'s rating went from 1589 to 1562 at the Paul Cracraft Memorial held on - 27 Apr 2003. 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.