This page explains how Ron Eaton (USATT# 376)'s rating went from 1889 to 1888 at the Grand Rapids TTC September Ope held on - 30 Sep 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.