This page explains how Michael Brown (USATT# 71023)'s rating went from 1693 to 1691 at the 2012 Millcreek Open held on - 21 Oct 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.