This page explains how Louie Lozada (USATT# 223685)'s rating went from 1815 to 1774 at the NJTTC Thursday Adv League event from 14 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.