This page explains how Steven Lowry (USATT# 7907)'s rating went from 2144 to 2164 at the Pottsgrove TTC event from 17 Feb 2006. 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.