This page explains how Ark Sean Ouyang (USATT# 97418)'s rating went from 2044 to 2042 at the Matchpoint TTC Friday League event from 24 Sep 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.