Mardie Cornejo vs. Hipolito Peña — Career Comparison

On the career pitching numbers, Mardie Cornejo posted a stronger line than Hipolito Peña. Mardie Cornejo posted stronger numbers in ERA (2.45 vs 4.84) and home runs allowed (0.25 per nine innings vs 1.12). By the career numbers, Mardie Cornejo 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.