Elvis Alvarado vs. Jonathan Aro — Career Comparison

On the career pitching numbers, Elvis Alvarado posted a stronger line than Jonathan Aro. Elvis Alvarado posted stronger numbers in ERA (3.19 vs 6.55) and WHIP (1.346 vs 1.909). By the career numbers, Elvis Alvarado had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.