This page explains how Berndt Mann (USATT# 52031)'s rating went from 1468 to 1457 at the Bob's IGA Hanover Open held on - 12 Jun 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.