This page explains how Arthur B. Chase (USATT# 4790)'s rating went from 1617 to 1607 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.