This page explains how Robert Ertel (USATT# 5647)'s rating went from 1421 to 1381 at the Princeton Pong Open League event from 1 Mar 2016. 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.