This page explains how Thomas R. Lawson (USATT# 7600)'s rating went from 1742 to 1737 at the Rockford Fall Open held on - 21 Oct 2007. 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.