This page explains how Dennis J. Coppola (USATT# 25263)'s rating went from 1849 to 1822 at the Quincy March Open held on - 16 Mar 2008. 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.