Bill Dietrich vs. John Halama — Career Comparison

On the career pitching numbers, Bill Dietrich posted a stronger line than John Halama. Bill Dietrich posted stronger numbers in ERA (4.48 vs 4.65) and home runs allowed (0.57 per nine innings vs 1.12). By the career numbers, Bill Dietrich 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.