This page explains how Patrick Kin Luen Lui (USATT# 7924)'s rating went from 1954 to 1936 at the 2008 NA Tour Finals Open held on - 14 Sep 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.