This page explains how Justin Chang (USATT# 1174326)'s rating went from 300 to 299 at the ASLT September Open 2022 held on 2 Sep 2022 - 4 Sep 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.