Philip Humber vs. Joe Kiefer — Career Comparison

Looking at the career totals, Philip Humber and Joe Kiefer are fairly close on the surface numbers. Philip Humber posted stronger numbers in ERA (5.31 vs 6.16) and WHIP (1.442 vs 1.732). Joe Kiefer had the advantage in home runs allowed (0.36 per nine innings vs 1.29). By the career numbers, Philip Humber 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.