David Aardsma vs. Mike Couchee — Career Comparison

Looking at the career totals, David Aardsma and Mike Couchee are fairly close on the surface numbers. Mike Couchee posted stronger numbers in WHIP (1.357 vs 1.487) and home runs allowed (0.64 per nine innings vs 1.09). David Aardsma had the advantage in ERA (4.27 vs 5.14). By the career numbers, Mike Couchee 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.