Josh Butler vs. David Martinez — Career Comparison

Looking at the career totals, Josh Butler and David Martinez are fairly close on the surface numbers. David Martinez posted stronger numbers in ERA (6.38 vs 9) and WHIP (1.418 vs 3.250). Josh Butler had the advantage in home runs allowed (0 per nine innings vs 0.98). By the career numbers, David Martinez 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.