This page explains how Zaferjit Singh Dhillon (USATT# 230073)'s rating went from 1214 to 1179 at the Westchester 2021 June Open held on 26 Jun 2021 - 27 Jun 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.