This page explains how Gary Sherwood (USATT# 474)'s rating went from 1555 to 1509 at the Rochester NY Giant RR held on - 26 Feb 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.