29 Mar 2021
This page explains how Tim Irwin (USATT# 1132472)'s rating went from 1570 to 1569 at the SpinBlock Monday Night League event from 29 Mar 2021. The links below take you to pages that describe various aspects of the ratings processor.
The ratings 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.