This page explains how Michael D. D. Henry (USATT# 6592)'s rating went from 2278 to 2305 at the Macy Block Columbus Open held on - 9 Aug 2008. 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.