This page explains how Patrick Sunman Wu (USATT# 60420)'s rating went from 1955 to 1939 at the Milpitas Sports Center event from 29 Oct 2005. 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.