Jim Hearn vs. Jack Leiter — Career Comparison

On the career pitching numbers, Jim Hearn posted a stronger line than Jack Leiter. Jim Hearn posted stronger numbers in ERA (3.81 vs 4.8) and home runs allowed (0.83 per nine innings vs 1.2). By the career numbers, Jim Hearn 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.