This page explains how David Soltwisch (USATT# 10150)'s rating went from 1447 to 1418 at the St. Joseph Valley, No. America held on - 29 May 1995. 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.