This page explains how Alan Petalver Almogela (USATT# 34198)'s rating went from 1247 to 1321 at the Austin Winter Open held on - 23 Feb 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.