This page explains how ANDREW DAVIS (USATT# 32895)'s rating went from 1851 to 1791 at the 2009 Alabama Closed Team Champ held on - 28 Mar 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.