This page explains how Brian Hoffman (USATT# 11165)'s rating went from 1649 to 1629 at the Trolley Car TTC Tuesday Night League event from 31 Mar 2015. 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.