This page explains how Robert Ertel (USATT# 5647)'s rating went from 1275 to 1227 at the Princeton Pong Leagues event from 27 Nov 2018. 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.