This page explains how Tim Weaver (USATT# 215934)'s rating went from 1026 to 1001 at the Trolley Car TTC February 2017 Open held on 25 Feb 2017 - 25 Feb 2017. 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.