This page explains how Maurice Chiu (USATT# 21071)'s rating went from 1047 to 1021 at the Schaumburg TTC Spring Open held on - 29 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.