20 Sep 2021
This page explains how Peter Kim (USATT# 271222)'s rating went from 883 to 867 at the SpinBlock Monday Night League event from 20 Sep 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.