This page explains how Patrick Sunman Wu (USATT# 60420)'s rating went from 2098 to 2055 at the ICC California State Open held on - 6 Dec 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.