This page explains how Guangwei Zhou (USATT# 276082)'s rating went from 1619 to 1518 at the Mastiff Table Tennis Club event from 12 Nov 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.