This page explains how Lujian Song (USATT# 282364)'s rating went from n/a to 492 at the Spttc Saturday Junior League event from 2 Mar 2024. 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.