This page explains how Glen Strachan (USATT# 70288)'s rating went from 1142 to 1099 at the Atlanta Fall Open held on - 10 Sep 2011. 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.