This page explains how Cosmo Pinkerton (USATT# 218068)'s rating went from 1270 to 1264 at the Pong Planet Friday Night, Tuesday Night, And Saturday Leagues event from 2 Oct 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.