This page explains how Alexander Geronimo (USATT# 270105)'s rating went from 1543 to 1537 at the 2022 HITTA Butterfly Thanksgiving Tournament held on 26 Nov 2022 - 27 Nov 2022. 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.