This page explains how Will Gordon (USATT# 76378)'s rating went from 1861 to 1851 at the NJTTC Thursday Adv League event from 7 Oct 2021. 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.