This page explains how Bobby J. Petty (USATT# 9057)'s rating went from 1781 to 1746 at the 22nd Annual Bernard Hock Open held on - 14 Oct 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.