This page explains how Arunachalam Vinayagam (USATT# 1176555)'s rating went from 819 to 822 at the ASLT League event from 12 May 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.