This page explains how Naresh Perumal Natesan (USATT# 280483)'s rating went from 1220 to 1206 at the ICC - Advanced League event from 14 Oct 2023. 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.