This page explains how Chris Mosio (USATT# 28893)'s rating went from 1802 to 1780 at the Eastern Open on the 2004 Stiga held on - 25 Jul 2004. 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.