This page explains how Daniel Morgan (USATT# 74529)'s rating went from 850 to 838 at the Spin Magicians Northern CA Fal held on - 23 Nov 2008. 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.