This page explains how Cameron Luo (USATT# 27961)'s rating went from 1686 to 1688 at the Kentuckiana League event from 20 Feb 2008. 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.