This page explains how Yuyang Ying (USATT# 90630)'s rating went from 1949 to 1949 at the Fremont Table Tennis Academy League event from 25 Jul 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.