Pete Mikkelsen vs. Jim Peterson — Career Comparison

On the career pitching numbers, Pete Mikkelsen posted a stronger line than Jim Peterson. Pete Mikkelsen posted stronger numbers in ERA (3.38 vs 5.27) and WHIP (1.344 vs 1.665). By the career numbers, Pete Mikkelsen 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.