This page explains how David Rosenzweig (USATT# 55035)'s rating went from 2206 to 2189 at the NJTTC November Open held on - 23 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.