This page explains how Mahesh Mariappa Krishnappa (USATT# 278928)'s rating went from 817 to 801 at the ICC - Sunday Beginners League event from 19 Nov 2023. 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.