This page explains how Robert Douglas Brickell (USATT# 4443)'s rating went from 1538 to 1498 at the GVTTC Monday Night League event from 23 Jan 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.