Orie Arntzen vs. Hayden Birdsong — Career Comparison

On the career pitching numbers, Orie Arntzen posted a stronger line than Hayden Birdsong. Orie Arntzen posted stronger numbers in ERA (4.22 vs 4.77) and home runs allowed (0.27 per nine innings vs 1.37). By the career numbers, Orie Arntzen 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.