This page explains how Rishaan Bala (USATT# 266076)'s rating went from 545 to 479 at the ICC - Sunday Beginners League event from 10 Oct 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.