This page explains how Robert Ertel (USATT# 5647)'s rating went from 1414 to 1412 at the Princeton Pong Open League event from 23 Jun 2015. 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.