This page explains how Liam Draper (USATT# 1170916)'s rating went from 1497 to 1331 at the JOOLA Global Championships held on 1 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.