This page explains how Paul C.T. Liu (USATT# 1628)'s rating went from 1421 to 1424 at the Hutchinson 2006 Winter Open held on - 25 Feb 2006. 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.