This page explains how Tzu Chieh Su (USATT# 1180708)'s rating went from 2548 to 2538 at the 2023 HITTA August Star of Tomorrow, Rated & Giant RR Tournament held on 12 Aug 2023 - 13 Aug 2023. 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.