This page explains how William Zhang (USATT# 21141)'s rating went from 1010 to 1003 at the Texas Wesleyan Open held on - 1 May 2011. 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.