This page explains how Dido Dutta (USATT# 98251)'s rating went from 2182 to 2147 at the ICC - Advanced League event from 4 Oct 2020. 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.