This page explains how CHI CHI CHOI (USATT# 272143)'s rating went from n/a to 938 at the PTTC Saturday League event from 6 Nov 2021. 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.