Bill Greif vs. Bump Hadley — Career Comparison

On the career pitching numbers, Bump Hadley posted a stronger line than Bill Greif. Bump Hadley posted stronger numbers in ERA (4.24 vs 4.41) and home runs allowed (0.51 per nine innings vs 0.88). By the career numbers, Bump Hadley 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.