This page explains how Louis Schlessinger (USATT# 86783)'s rating went from 1973 to 1971 at the Princeton Pong Leagues event from 11 Feb 2020. 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.