This page explains how Ark Sean Ouyang (USATT# 97418)'s rating went from 1928 to 1900 at the Topspin Advanced League event from 21 Jul 2018. 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.