Charlie Hartman vs. Jim Peterson — Career Comparison

On the career pitching numbers, Charlie Hartman posted a stronger line than Jim Peterson. Charlie Hartman posted stronger numbers in ERA (4.5 vs 5.27) and WHIP (1.500 vs 1.665). By the career numbers, Charlie Hartman 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.