Mack Allison vs. Grant Holmes — Career Comparison

On the career pitching numbers, Mack Allison posted a stronger line than Grant Holmes. Mack Allison posted stronger numbers in ERA (3.17 vs 3.83) and home runs allowed (0.15 per nine innings vs 1.13). By the career numbers, Mack Allison 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.