This page explains how Charles Shen (USATT# 217235)'s rating went from 1970 to 1943 at the LYTTC Friday Pro League event from 26 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.