This page explains how Walt Rosen (USATT# 9570)'s rating went from 1865 to 1765 at the Houston July RR held on - 12 Jul 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.