This page explains how Jim Beckford (USATT# 4148)'s rating went from 1980 to 1991 at the Florida Orange Blossom Series - Spring Classic Open held on - 19 May 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.