This page explains how Brian Aschenbach (USATT# 76778)'s rating went from 1631 to 1670 at the Topspin Open League event from 7 Feb 2012. 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.