This page explains how Pat Baccili (USATT# 214645)'s rating went from 1653 to 1620 at the NJTTC Tuesday V League event from 5 Dec 2023. 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.