This page explains how Hsu-Chang Lu (USATT# 84845)'s rating went from 1781 to 1776 at the LYTTC Friday Pro League event from 14 Oct 2022. 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.