This page explains how Cosmo Pinkerton (USATT# 218068)'s rating went from 1612 to 1588 at the WCTTA Saturday League event from 26 Oct 2019. 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.