This page explains how Glen Strachan (USATT# 70288)'s rating went from 1276 to 1259 at the 2013 Atlanta Giant RR Open TTT held on - 2 Nov 2013. 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.