This page explains how Allen Howie Levin (USATT# 64416)'s rating went from 1746 to 1724 at the Grand Rapids October Open held on - 1 Oct 1994. 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.