This page explains how Ryan Chen (USATT# 220128)'s rating went from 269 to 491 at the 2022 Fremont Butterfly March Open held on 11 Mar 2022 - 13 Mar 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.