This page explains how Jonathan Paretsky (USATT# 63684)'s rating went from 1642 to 1645 at the 2nd Tallgrass Prairie Open held on - 31 May 2003. 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.