This page explains how Randall Medcalf (USATT# 64482)'s rating went from 1974 to 2000 at the 2007 Aliana TT Championship held on - 2 Sep 2007. 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.