Ben Casparius vs. Mike Willis — Career Comparison

On the career pitching numbers, Ben Casparius posted a stronger line than Mike Willis. Ben Casparius posted stronger numbers in ERA (4.4 vs 4.59) and WHIP (1.302 vs 1.524). By the career numbers, Ben Casparius 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.