Bill Morrell vs. Jim Peterson — Career Comparison

On the career pitching numbers, Bill Morrell posted a stronger line than Jim Peterson. Bill Morrell posted stronger numbers in ERA (4.64 vs 5.27) and WHIP (1.594 vs 1.665). By the career numbers, Bill Morrell 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.