Aaron Heilman vs. Zack Thompson — Career Comparison

Looking at the career totals, Aaron Heilman and Zack Thompson are fairly close on the surface numbers. Aaron Heilman had the edge in home runs allowed (1.03 per nine innings vs 1.3). By the career numbers, Aaron Heilman 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.