This page explains how Alex Hwang (USATT# 223729)'s rating went from 91 to 87 at the Fremont Table Tennis Academy League event from 21 Mar 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.