Alek Jacob vs. Mark Melancon — Career Comparison

On the career pitching numbers, Mark Melancon posted a stronger line than Alek Jacob. Mark Melancon posted stronger numbers in ERA (2.94 vs 4.06) and home runs allowed (0.54 per nine innings vs 1.24). By the career numbers, Mark Melancon 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.