This page explains how Shishir Mahajan (USATT# 197089)'s rating went from 1887 to 1886 at the 888 Table Tennis Winterfest Tournament held on 3 Dec 2021 - 5 Dec 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.