This page explains how Mohammed S. Zaman (USATT# 81460)'s rating went from 688 to 689 at the Vernon Hills Fall Open held on - 29 Nov 2014. 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.