This page explains how Liam Draper (USATT# 1170916)'s rating went from 1333 to 1258 at the MDTTC September Open held on 10 Sep 2022 - 11 Sep 2022. The links below take you to pages that describe various aspects of the ratings processor.

The ratings 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.