This page explains how Edward Watts (USATT# 55348)'s rating went from 1690 to 1658 at the 1996 Decatur Open held on - 7 Sep 1996. 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.