This page explains how Paul Nguyen (USATT# 33336)'s rating went from 1569 to 1566 at the 2007 JOOLA RR Extravaganza held on - 5 Aug 2007. 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.