This page explains how Bill Ukapatayasakul (USATT# 10729)'s rating went from 2048 to 2065 at the 1998 Arizona Open held on - 22 Feb 1998. 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.