This page explains how Frank C. Heller (USATT# 6566)'s rating went from 1560 to 1509 at the 2000 Kansas Late Winter Classi held on - 11 Mar 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.