This page explains how Rassi Zhou (USATT# 275101)'s rating went from 459 to 453 at the Matchpoint TTC Friday League event from 7 Oct 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.