This page explains how Alan Duvall (USATT# 25205)'s rating went from n/a to 1305 at the 17th Annual Bernard Hock Open held on - 13 Oct 2002. 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.