This page explains how Roland M. Schilhab (USATT# 9778)'s rating went from 2017 to 2006 at the Waco Spring Round Robin Tourna held on - 21 May 1994. 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.