This page explains how Reinaldo Cortes (USATT# 223865)'s rating went from 1635 to 1626 at the Butterfly Dec 2018 BTTC Open held on 14 Dec 2018 - 16 Dec 2018. 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.