This page explains how Umar Brown (USATT# 83534)'s rating went from 1104 to 1087 at the 2012 BumperNets Fall League event from 13 Oct 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.