This page explains how Tony Y. Wu (USATT# 28551)'s rating went from 1923 to 1921 at the Mastiff Table Tennis Club event from 11 May 2024. 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.