This page explains how Marguerite Cheung (USATT# 70292)'s rating went from 1375 to 1313 at the Mohawk Valley TTC League event from 27 May 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.