This page explains how Charles Richard Patton (USATT# 20719)'s rating went from 1889 to 1902 at the 2009 Alabama Closed held on - 25 Apr 2009. 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.