This page explains how Vishal Sivakumar (USATT# 1171292)'s rating went from 1201 to 1158 at the ICC - Sunday Beginners League event from 16 May 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.