This page explains how Carlos I. I. Estrada (USATT# 39831)'s rating went from 2031 to 1947 at the Robopong June 2016 Marty Prager Memorial BTTC Open held on 24 Jun 2016 - 26 Jun 2016. 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.