This page explains how CHI CHI CHOI (USATT# 272143)'s rating went from 1084 to 1066 at the PTTC Saturday League event from 30 Apr 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.