This page explains how Allen W. Wang (USATT# 69905)'s rating went from 2180 to 2127 at the 6th Dr. Zhi Yu - Everbright Cu held on - 13 Jun 2009. 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.