This page explains how Donghui Zhang (USATT# 264092)'s rating went from 1756 to 1729 at the Mastiff Table Tennis Club event from 23 Oct 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.