This page explains how Brian Aschenbach (USATT# 76778)'s rating went from 1902 to 1901 at the NJTTC Thursday Adv League event from 9 Nov 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.