This page explains how Willy Leparulo (USATT# 13012)'s rating went from 1728 to 1673 at the Pensacola Winter Open 2003 held on - 11 Jan 2003. 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.