This page explains how Norman Williams (USATT# 19535)'s rating went from 1075 to 1063 at the 2003 Millcreek Open held on - 19 Oct 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.