This page explains how Alfred Palumbo (USATT# 14369)'s rating went from 1494 to 1507 at the 2009 Haines City Summer Classi held on - 18 Jul 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.