This page explains how Will Gordon (USATT# 76378)'s rating went from 1800 to 1782 at the NJTTC Thursday Adv League event from 14 Dec 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.