This page explains how Jerry Packard (USATT# 49577)'s rating went from 1416 to 1456 at the 1998 Midwest & Illinois Closed held on - 21 Nov 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.