This page explains how Allen Cornelius (USATT# 5072)'s rating went from 1690 to 1689 at the Rocky Mountain State Games held on - 1 Aug 2010. 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.