This page explains how Edwin Yau (USATT# 202653)'s rating went from 1442 to 1440 at the Mastiff Table Tennis Club event from 14 Jan 2023. 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.