This page explains how Brian Aschenbach (USATT# 76778)'s rating went from 1670 to 1668 at the NJTTC Monday League event from 14 Feb 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.