This page explains how Thuan Dao (USATT# 88259)'s rating went from 1905 to 1899 at the 2022 US Nationals South Central Regional Qualification Tournament - HITTA held on 3 Jun 2022 - 5 Jun 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.