This page explains how Pezhman Shams (USATT# 28196)'s rating went from 1866 to 1800 at the Best of the Midwest held on - 27 Jul 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.