Ed Pierce vs. Dereck Rodriguez — Career Comparison

Looking at the career totals, Ed Pierce and Dereck Rodriguez are fairly close on the surface numbers. Dereck Rodriguez posted stronger numbers in WHIP (1.361 vs 2.438) and home runs allowed (1.42 per nine innings vs 1.69). Ed Pierce had the advantage in ERA (3.38 vs 4.49). By the career numbers, Dereck Rodriguez 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.