This page explains how Bruce Holck (USATT# 6732)'s rating went from 1429 to 1428 at the Mohawk Valley TTC League event from 23 Oct 2006. 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.