This page explains how David Rosenzweig (USATT# 55035)'s rating went from 2165 to 2142 at the NJTTC January Open held on - 16 Jan 2000. 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.