This page explains how Ralph Kissel (USATT# 7309)'s rating went from 1908 to 1892 at the 2000 Decatur Open held on - 19 Aug 2000. 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.