This page explains how Luis Sujo (USATT# 79007)'s rating went from 1987 to 1974 at the Robopong August 2013 BTTC Open held on - 4 Aug 2013. 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.