This page explains how George Xing (USATT# 25868)'s rating went from 1487 to 1478 at the New Jersey TTC Youth League event from 8 Nov 2003. 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.