This page explains how Amer M. Shaw (USATT# 5954)'s rating went from 1938 to 1921 at the Kentuckiana League event from 4 Apr 2007. 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.