This page explains how Allen Howie Levin (USATT# 64416)'s rating went from 1917 to 1920 at the Rockford July Party Open held on - 22 Jul 1995. 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.