This page explains how Joseph Yoon (USATT# 22410)'s rating went from 2022 to 2021 at the Experior Club League event from 2 Oct 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.