This page explains how Johan Athial (USATT# 269864)'s rating went from 1181 to 1179 at the Central Carolinas Super League event from 22 Jul 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.