This page explains how Cameron Luo (USATT# 27961)'s rating went from 1824 to 1815 at the Circle City Giant RR held on - 20 Jan 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.