This page explains how CHI CHI CHOI (USATT# 272143)'s rating went from 1246 to 1242 at the PTTC Saturday League event from 22 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.