This page explains how Bernardo Hernandez Prado (USATT# 89675)'s rating went from 2009 to 1943 at the Spttc Saturday Night League event from 1 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.