This page explains how Hanno T. Beck (USATT# 53541)'s rating went from 1320 to 1304 at the Maryland Closed held on - 30 May 2009. 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.