This page explains how Daniel Yang (USATT# 34597)'s rating went from 1494 to 1480 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.