This page explains how Roy Michael Dietz (USATT# 5368)'s rating went from 1645 to 1863 at the 2008 Millcreek Open held on - 19 Oct 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.