This page explains how Lifeng Jia (USATT# 93910)'s rating went from 1809 to 1809 at the ASLT League event from 24 Feb 2023. 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.