This page explains how Jason T. Tin Lau (USATT# 75018)'s rating went from 1140 to 1123 at the Golden Western Open held on - 30 Mar 2008. 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.