This page explains how Ark Sean Ouyang (USATT# 97418)'s rating went from 892 to 890 at the Topspin Open League event from 12 Feb 2016. 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.