This page explains how Scott Kressner (USATT# 5021)'s rating went from 1875 to 1855 at the Bach Viet Grand Opening held on - 17 Nov 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.