This page explains how Zachary D Moore (USATT# 31868)'s rating went from 1839 to 1804 at the 2009 Lindenwood March Open held on - 22 Mar 2009. 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.