This page explains how Joseph S. Helfand (USATT# 6564)'s rating went from 1435 to 1432 at the 1999 Michigan State Champs & G held on - 7 Feb 1999. 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.