Jim Abbott vs. Marty Bystrom — Career Comparison

Looking at the career totals, Jim Abbott and Marty Bystrom are fairly close on the surface numbers. Marty Bystrom posted stronger numbers in ERA (4.26 vs 20.25) and WHIP (1.428 vs 3.750). Jim Abbott had the advantage in home runs allowed (0 per nine innings vs 0.58). By the career numbers, Marty Bystrom 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.