This page explains how George Xing (USATT# 25868)'s rating went from 1615 to 1613 at the NJTTC February Open held on - 8 Feb 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.