This page explains how Weisung Tsao (USATT# 28857)'s rating went from 2069 to 2067 at the Golden State Open held on - 30 May 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.