This page explains how Charles Richard Patton (USATT# 20719)'s rating went from 1921 to 1905 at the Alabama Closed held on - 18 May 2013. 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.