This page explains how Gulshan Gulshan Mandhyan (USATT# 1164524)'s rating went from 1272 to 1259 at the 2021 Washington D.C. Table Tennis Giant Round Robin held on 28 Aug 2021 - 29 Aug 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.