This page explains how Frank C. Heller (USATT# 6566)'s rating went from 1446 to 1458 at the Hutchinson 2007 Summer Open held on - 8 Sep 2007. 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.