This page explains how James Petrie (USATT# 55556)'s rating went from 1404 to 1593 at the 1999 Kansas Late Summer Classi held on - 11 Sep 1999. 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.