This page explains how Cosmo Pinkerton (USATT# 218068)'s rating went from 1057 to 1029 at the Pong Planet Friday Night, Tuesday Night, And Saturday Leagues event from 15 May 2018. 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.