This page explains how Michael Guo (USATT# 221417)'s rating went from 2219 to 2207 at the 2021 TEXAS TWO-PERSON TEAM OPEN held on 19 Nov 2021 - 21 Nov 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.