This page explains how Charlie Zhao (USATT# 272395)'s rating went from 1521 to 1483 at the Central Carolinas Super League event from 14 Sep 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.