This page explains how Thomas J. Huff (USATT# 6854)'s rating went from 1598 to 1669 at the Maryland Giant RR held on - 25 Jul 2009. 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.