This page explains how Brian Bartley (USATT# 54303)'s rating went from 1979 to 1999 at the 2015 Winter Two Stage Giant RR held on - 24 Jan 2015. 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.