This page explains how Gerald Echols (USATT# 30052)'s rating went from 1541 to 1543 at the 15th Annual Decatur Open held on - 19 Aug 2006. 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.