This page explains how Kai Zarehbin (USATT# 91905)'s rating went from 2420 to 2384 at the ICC - Advanced League event from 9 Oct 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.