This page explains how Andranik Mehrabian (USATT# 8555)'s rating went from 1804 to 1761 at the STTC 20th Anniversary Open held on - 24 Jun 2006. 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.