This page explains how Ziwei Shen (USATT# 1166078)'s rating went from 47 to 41 at the Topspin Open League event from 12 Apr 2019. 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.