This page explains how DONNIE MCGINNIS (USATT# 71260)'s rating went from 1323 to 1310 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.