This page explains how Pitchumani Raja (USATT# 1177391)'s rating went from 840 to 817 at the Motor City Open 2023 held on 6 May 2023 - 6 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.