Jason Anderson vs. Phillip Diehl — Career Comparison

Looking at the career totals, Jason Anderson and Phillip Diehl are fairly close on the surface numbers. Jason Anderson posted stronger numbers in ERA (6.39 vs 9.47) and home runs allowed (1.42 per nine innings vs 2.84). Phillip Diehl had the advantage in WHIP (1.684 vs 1.974). By the career numbers, Jason Anderson 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.