This page explains how Marlon Mccartney (USATT# 42639)'s rating went from 2014 to 1986 at the Summer Open held on - 26 Jul 2014. 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.