Randy Gumpert vs. Jack Leiter — Career Comparison

On the career pitching numbers, Randy Gumpert posted a stronger line than Jack Leiter. Randy Gumpert posted stronger numbers in ERA (4.17 vs 4.8) and home runs allowed (0.79 per nine innings vs 1.2). By the career numbers, Randy Gumpert 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.