This page explains how Peter Lawrence (USATT# 75892)'s rating went from 1405 to 1393 at the Hutchinson 2008 Fall Open held on - 6 Dec 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.