This page explains how Sidh Nisar (USATT# 271971)'s rating went from 522 to 499 at the Matchpoint TTC Friday League event from 29 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.