This page explains how Robert Spitzer (USATT# 27003)'s rating went from 1816 to 1801 at the NJTTC Thursday Adv League event from 19 Jul 2018. 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.