Jim Pena vs. Bret Prinz — Career Comparison

On the career pitching numbers, Jim Pena posted a stronger line than Bret Prinz. Jim Pena posted stronger numbers in ERA (3.48 vs 4.89) and home runs allowed (0.82 per nine innings vs 1.27). By the career numbers, Jim Pena 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.