This page explains how Umar Brown (USATT# 83534)'s rating went from 973 to 964 at the 2015 Bumpernets Fall League event from 25 Jul 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.