Jonathan Aro vs. Romulo Sanchez — Career Comparison

On the career pitching numbers, Romulo Sanchez posted a stronger line than Jonathan Aro. Romulo Sanchez posted stronger numbers in ERA (4.04 vs 6.55) and WHIP (1.346 vs 1.909). By the career numbers, Romulo Sanchez 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.