This page explains how Alfred John (USATT# 73278)'s rating went from 1982 to 1969 at the 2012 JOOLA N. American Teams O held on - 25 Nov 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.