Aaron Ashby vs. Marty Bystrom — Career Comparison

Looking at the career totals, Aaron Ashby and Marty Bystrom are fairly close on the surface numbers. Aaron Ashby posted stronger numbers in ERA (3.62 vs 4.26) and WHIP (1.274 vs 1.428). Marty Bystrom had the advantage in home runs allowed (0.58 per nine innings vs 0.92). By the career numbers, Aaron Ashby 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.