This page explains how Mary Crusius (USATT# 19373)'s rating went from 722 to 688 at the 2008 Cary Cup Championship held on - 17 Mar 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.