This page explains how Hao Chu (USATT# 57447)'s rating went from 1343 to 1339 at the 888 League event from 27 Nov 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.