This page explains how Steven Kasha (USATT# 76916)'s rating went from 1717 to 1690 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.