This page explains how Ali Eric Zandifar (USATT# 280370)'s rating went from 1577 to 1564 at the ARARAT OPEN 2024 held on 2 Jun 2024 - 2 Jun 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.