This page explains how Santiago Alejandro Acosta (USATT# 218921)'s rating went from 2313 to 2255 at the 2021 July Open @ Princeton Pong held on 10 Jul 2021 - 11 Jul 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.