This page explains how Charlie JT Wang (USATT# 94523)'s rating went from 1850 to 1847 at the Topspin Advanced League event from 5 Apr 2017. 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.