This page explains how Terry K. Brecheisen (USATT# 39903)'s rating went from 1638 to 1672 at the Hutchinson 2006 Summer Open held on - 19 Aug 2006. 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.