This page explains how Raphael D Lizama (USATT# 11587)'s rating went from 1004 to 993 at the OCTTC League event from 8 May 2005. 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.