This page explains how Bruce Holck (USATT# 6732)'s rating went from 1538 to 1521 at the 2011 MVTTC Thanksgiving Open held on - 19 Nov 2011. 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.