This page explains how Leon J. Ufers (USATT# 70072)'s rating went from 1081 to 1106 at the Arizona Open held on - 17 Feb 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.