This page explains how Steven Neumann (USATT# 29826)'s rating went from 1397 to 1365 at the Pottsgrove TTC event from 28 Jul 2005. 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.