This page explains how Marvin Bogie (USATT# 82673)'s rating went from 1587 to 1566 at the BTTC League event from 19 Jul 2018. 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.