29 Oct 2021 - 31 Oct 2021
This page explains how Gabriele Bonaiti (USATT# 220830)'s rating went from 1650 to 1656 at the 2021 HITTA Butterfly Halloween Open held on 29 Oct 2021 - 31 Oct 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.