This page explains how Duoguang Li (USATT# 83605)'s rating went from 1720 to 1700 at the Houston Elite League event from 3 Jan 2020. 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.