This page explains how Robert W. H. Ho (USATT# 6684)'s rating went from 1615 to 1593 at the Tri-City Spring RR held on - 26 Apr 1997. 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.