This page explains how Yuyang Ying (USATT# 90630)'s rating went from 1890 to 1890 at the Fremont Table Tennis Academy League event from 1 Aug 2020. 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.