This page explains how Benjamin Hartwiger (USATT# 93879)'s rating went from 2070 to 2083 at the 2021 HITTA Butterfly Fall Open held on 14 Aug 2021 - 15 Aug 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.