This page explains how James Therriault (USATT# 10533)'s rating went from 2158 to 2151 at the 2003 S.F. Summer Open held on - 17 Aug 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.