This page explains how Doug Albrecht (USATT# 198997)'s rating went from 671 to 600 at the Pong Planet Friday Night, Tuesday Night, And Saturday Leagues event from 9 Feb 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.