This page explains how Randall Medcalf (USATT# 64482)'s rating went from 1817 to 1808 at the Houston December 1998 RR held on - 5 Dec 1998. 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.