This page explains how Brian Hoffman (USATT# 11165)'s rating went from 1656 to 1638 at the Trolley Car TTC Tuesday Night League event from 5 Apr 2016. 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.