This page explains how Johnnie Emanuel Jose Lopez Arteaga (USATT# 4861)'s rating went from 1968 to 1958 at the Houston Elite League event from 30 Nov 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.