This page explains how John J. Cerillo (USATT# 55745)'s rating went from 1510 to 1490 at the New Jersey State Championships held on - 9 Apr 1995. 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.