This page explains how Stanley Wallen (USATT# 10898)'s rating went from 1784 to 1764 at the Kentuckiana League event from 24 Sep 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.