This page explains how Raphael D Lizama (USATT# 11587)'s rating went from 993 to 986 at the OCTTC League event from 21 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.