This page explains how Rignesh Achar Padamanur (USATT# 215565)'s rating went from 1897 to 1869 at the ICC - Advanced League event from 18 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.