This page explains how Kai Zarehbin (USATT# 91905)'s rating went from 2329 to 2331 at the 888 League event from 12 Sep 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.