This page explains how Lloyd Codrington Mcqueen (USATT# 31212)'s rating went from 2160 to 2069 at the California State Open held on - 31 May 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.