The percentage of plate appearances where a batter had a batted ball classified Figura a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage. A study from Boston Review explained https://donovankychl.bloguetechno.com/plan-saneamiento-básico-una-visión-general-72301849