This page explains how Steven Kasha (USATT# 76916)'s rating went from 1699 to 1678 at the Rhode Island 2021 Butterfly Comeback Open held on 7 Nov 2021 - 7 Nov 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.