This page explains how Robert Douglas Brickell (USATT# 4443)'s rating went from 1501 to 1458 at the GVTTC Monday Night League event from 6 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.