This page explains how Michael Lawless (USATT# 270141)'s rating went from 1571 to 1531 at the SpinBlock Monday Night League event from 5 Apr 2021. 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.