This page explains how Bruce Harris (USATT# 51837)'s rating went from 1846 to 1842 at the Schaumburg Spring Open held on - 8 May 2010. 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.