This page explains how Andrew Snyder (USATT# 1159)'s rating went from 1579 to 1618 at the NJTTC 2013 February Open held on - 2 Feb 2013. 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.