This page explains how Kelly Zhao (USATT# 86018)'s rating went from 2216 to 2166 at the 2019 DFWTT Fall League event from 7 Sep 2019. 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.