This page explains how Ellis Kravets Kilian (USATT# 216589)'s rating went from 1321 to 1291 at the Princeton Pong Leagues event from 24 Sep 2019. 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.