Justin Hagenman vs. Adam Warren — Career Comparison

Looking at the career totals, Justin Hagenman and Adam Warren are fairly close on the surface numbers. Adam Warren posted stronger numbers in ERA (3.53 vs 4.56) and home runs allowed (1.02 per nine innings vs 1.52). Justin Hagenman had the advantage in WHIP (1.099 vs 1.257). By the career numbers, Adam Warren 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.