This page explains how Paul A. Frisoli (USATT# 1881)'s rating went from 1579 to 1570 at the 2012 Eastern Open on JOOLA North America Tour held on - 3 Jun 2012. 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.