Marty Bystrom vs. George Mitchell — Career Comparison

On the career pitching numbers, Marty Bystrom posted a stronger line than George Mitchell. Marty Bystrom posted stronger numbers in ERA (4.26 vs 4.5) and WHIP (1.428 vs 1.478). 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.