This page explains how Bruce Holck (USATT# 6732)'s rating went from 1581 to 1554 at the NE PA Open TT Championships held on - 1 Nov 2008. 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.