This page explains how Lijia Zhen (USATT# 273785)'s rating went from 526 to 650 at the HITTA Weekly League event from 2 Dec 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.