This page explains how David Rosenzweig (USATT# 55035)'s rating went from 2143 to 2078 at the NJTTC Super League event from 1 Jun 2012. 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.