This page explains how Alec Holst (USATT# 202876)'s rating went from 2021 to 2020 at the Princeton Pong Leagues event from 26 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.