This page explains how Jonathan Paretsky (USATT# 63684)'s rating went from 1442 to 1548 at the Chicago Ping Pong 2000 held on - 22 Sep 2000. 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.