30 Jun 2019 - 5 Jul 2019
This page explains how Guo Hui Lu (USATT# 23538)'s rating went from 2407 to 2402 at the 2019 US Nationals held on 30 Jun 2019 - 5 Jul 2019. The links below take you to pages that describe various aspects of the ratings processor.
The ratings 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.