Speedball Hackett vs. Rodrigo Lopez — Career Comparison

On the career pitching numbers, Rodrigo Lopez posted a stronger line than Speedball Hackett. Rodrigo Lopez posted stronger numbers in ERA (4.82 vs 10.8) and WHIP (1.442 vs 2.850). By the career numbers, Rodrigo Lopez 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.