This page explains how Edward Watts (USATT# 55348)'s rating went from 1609 to 1495 at the 16th Annual Decatur Open held on - 18 Aug 2007. 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.