This page explains how Michael Guo (USATT# 221417)'s rating went from 2315 to 2311 at the 2022 Austin Winter Round Robin Tournament held on 26 Feb 2022 - 26 Feb 2022. 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.