This page explains how Robert Charles Compton (USATT# 5008)'s rating went from 1858 to 1890 at the El Paso 2009 Fall Open held on - 1 Nov 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.