This page explains how Subham Kundu (USATT# 129285)'s rating went from 2263 to 2211 at the ICC JOOLA SUMMER OPEN- 2021 held on 29 May 2021 - 30 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.