This page explains how John J. Cerillo (USATT# 55745)'s rating went from 1512 to 1506 at the NJTTC Monday League event from 5 Nov 2004. 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.