This page explains how Ed Roche (USATT# 33522)'s rating went from 1634 to 1671 at the 2013 Fall Open held on - 9 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.