This page explains how Michael Goedde (USATT# 32601)'s rating went from 1923 to 1921 at the Maryland Giant Round Robin held on - 28 Aug 2010. 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.