This page explains how Ryan Ekdahl (USATT# 1151106)'s rating went from 1834 to 1822 at the ICC - Advanced League event from 17 Sep 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.