This page explains how Ling Fan (USATT# 73523)'s rating went from 1691 to 1686 at the Charlotte Open February Extrav held on - 25 Feb 2007. 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.