This page explains how Soren Tannehill (USATT# 54553)'s rating went from 1956 to 2002 at the Canton Fall Open Giant RR held on - 11 Nov 2006. 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.