This page explains how Chad Dammar (USATT# 82170)'s rating went from 1586 to 1583 at the MVTTC 2012 Fall Open held on - 3 Nov 2012. 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.