This page explains how Ann-ping Shangguan (USATT# 97927)'s rating went from 2159 to 2161 at the Matchpoint TTC Friday League event from 25 Jun 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.