This page explains how Bernardo Hernandez Prado (USATT# 89675)'s rating went from 1967 to 1952 at the Spttc Saturday Night League event from 20 Jul 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.