This page explains how George Xing (USATT# 25868)'s rating went from 1496 to 1480 at the New Jersey TTC Youth League event from 31 Jan 2004. 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.