This page explains how Youqing Shou (USATT# 277753)'s rating went from 640 to 729 at the AZ PTTC Monday event from 2 Oct 2023. 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.