This page explains how Matthew Hekmatniaz (USATT# 202852)'s rating went from 1259 to 1254 at the LATTA Butterfly Open June 2021 held on 26 Jun 2021 - 26 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.