This page explains how Roel Borbon Borbon Aguanta (USATT# 268369)'s rating went from 1985 to 2013 at the Spttc Wednesday night league event from 12 Jun 2019. 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.