This page explains how Chirag Sheth (USATT# 270332)'s rating went from 1537 to 1520 at the ICC - Advanced League event from 4 Dec 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.