This page explains how Isaac Shtilerman (USATT# 250155)'s rating went from 823 to 817 at the Gold Coast TTC April 2024 Open held on 14 Apr 2024 - 14 Apr 2024. 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.