This page explains how Anastasia Melomedov (USATT# 221834)'s rating went from 1297 to 1296 at the Barry Dattel Memorial Open Jan 2021 held on 23 Jan 2021 - 24 Jan 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.