This page explains how Ebrahim Aly (USATT# 14471)'s rating went from 1559 to 1523 at the Sarasota TTC Spring Open held on - 27 May 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.