Park Swartzel vs. Mike Willis — Career Comparison

On the career pitching numbers, Park Swartzel posted a stronger line than Mike Willis. Park Swartzel posted stronger numbers in ERA (4.32 vs 4.59) and WHIP (1.457 vs 1.524). By the career numbers, Park Swartzel 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.