This page explains how Joseph P Mozur (USATT# 10958)'s rating went from 1633 to 1627 at the Pensacola Open held on - 11 Jan 1997. 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.