Justin Hagenman vs. Ryan Mattheus — Career Comparison

Looking at the career totals, Justin Hagenman and Ryan Mattheus are fairly close on the surface numbers. Ryan Mattheus posted stronger numbers in ERA (3.72 vs 4.56) and home runs allowed (0.59 per nine innings vs 1.52). Justin Hagenman had the advantage in WHIP (1.099 vs 1.462). By the career numbers, Ryan Mattheus 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.