Marty Bystrom vs. J. P. France — Career Comparison

Looking at the career totals, Marty Bystrom and J. P. France are fairly close on the surface numbers. Marty Bystrom had the edge in home runs allowed (0.58 per nine innings vs 1.3). 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.