This page explains how William Mayweather (USATT# 201518)'s rating went from 1329 to 1238 at the Princeton Pong Leagues event from 11 Jul 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.