This page explains how Asif Ud-Doula (USATT# 72967)'s rating went from 1966 to 1958 at the Brooklyn TTC December Open held on - 27 Dec 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.