This page explains how Tim Hui (USATT# 88906)'s rating went from 1641 to 1665 at the Trolley Car TTC 2013 October P held on - 26 Oct 2013. 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.